> For the complete documentation index, see [llms.txt](https://help.contouron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.contouron.com/support/error-reference.md). # Error Reference > For the complete documentation index, see [llms.txt](https://help.contouron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.contouron.com/support/errors.md). ## Error Reference This page contains all Contouron error messages and their explanations. Use your browser's search function (Ctrl+F or Cmd+F) to find your specific error. ### API Errors | Error | Explanation | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Authorization failed - please check your credentials | Double check your Contouron API key. Use the n8n/Make official Contouron nodes for easier setup. You don't have to worry about copy/pasting IDs or raw JSON code. See tutorial: | | Wrong Contouron API Key | Check you've copied the API key correctly without whitespaces. Use the official Contouron n8n/Make nodes for easier setup - you won't need to hardcode API keys manually. See tutorial: | | URL is empty | The URL being passed is empty. Check that previous step finished creating your video/carousel. Increase WAIT time if needed and verify you have enough credits. | | Wrong Account ID | Use the official Contouron n8n/Make nodes - you can select accounts from a dropdown instead of copying IDs manually. See tutorial: . If not using official nodes: Check you've copied the social account ID correctly from Settings > Social Accounts. | | Account \[ID] not found | The accountId in your request does not exist for the user/workspace behind your API key. Use the official Contouron n8n/Make nodes to avoid ID errors -- select accounts from a dropdown instead of copying IDs manually. Install guide: . If you are using MCP or an AI coding tool, your AI tool handles account lookup automatically. Point it to: | | Wrong Page ID | Facebook requires both Account ID and Page ID. Check you've copied Page ID correctly using the "Copy Page ID" button. | | Invalid File Format | Check your file format is valid per social platform requirements. | | Invalid Video Dimensions | Video dimensions not supported by platform. Test with this sample video: | | reached\_active\_user\_cap | Account not properly warmed up. Follow warm-up guide before connecting to Contouron. | | You Ran Out Of AI Credits | Go to Settings > Billing to check and add credits. | | Image or video stuck on "generating" indefinitely | This is not a credits issue. The generation silently failed. Refresh the page and try again. If it persists: create a new video instead of regenerating the stuck one. Check your [API Dashboard](https://my.contouron.com/api-dashboard) for error details. If you have credits but the generation hangs, do not assume credits are the problem. | | 500 Internal Server Error on visual creation | A server-side error occurred. This is not a credits issue. Check your [API Dashboard](https://my.contouron.com/api-dashboard) for the error details. Retry after a few minutes. If using Claude Code or MCP, verify your template ID and inputs are valid. | | Media conversion failed | The media file could not be converted to the format required by the target platform. Common causes: 1) Wrong aspect ratio for Instagram (must be 1:1, 4:5, 1.91:1, or 9:16). 2) Resized templates producing non-standard dimensions. 3) Too many hashtags (Instagram rejects posts exceeding its hashtag limit during media processing). 4) Unsupported codec -- use H.264 MP4 format. Check [Social Platform Requirements](/tips-and-tricks/social-platform-requirements.md) for each platform's specs. | | Could not publish on Instagram: An unexpected error has occurred | This error comes from Instagram/Meta, not Contouron. Troubleshooting steps: 1) Check the [API Dashboard](https://my.contouron.com/api-dashboard) for the full error. 2) Reconnect your Instagram account in [Settings > Social Accounts](https://my.contouron.com/settings). 3) Verify the media URL is publicly accessible (open in incognito). 4) Reduce hashtags and caption length. 5) Increase time between posts. If the error persists after reconnecting, submit a support ticket with the reqId from the error message. | | Unsupported media format (.mov) | Contouron requires H.264 MP4 format for video publishing via API. The .mov format is not supported even if the file is under size limits. Convert your video to H.264 MP4 before uploading or passing via mediaUrls. | | Account \[ID] not found (LinkedIn) | For LinkedIn company pages, you need both an accountId and a pageId. A common mistake is passing the pageId where accountId is expected. Use `GET /v2/users/me/accounts` to get the accountId, then `GET /v2/users/me/accounts/{accountId}/subaccounts` to get the pageId. Pass accountId in `post.accountId` and pageId in `post.target.pageId`. See: Accounts API | | 503 Service Unavailable | The social platform or a connected service is temporarily down. This is usually a platform-side outage, not a Contouron issue. Wait a few minutes and retry. If the error persists, check the platform's status page. | | 504 Gateway Timeout | The request took too long and timed out. This happens when the social platform does not respond within the allowed time. Retry after a few minutes. If it keeps happening, reconnect the account in [Settings > Social Accounts](https://my.contouron.com/settings). | | Wrong Template Parameters | Each video template has different parameters. Check API docs for correct template parameters. | | Missing AI Voice | POV template doesn't include AI voice. Use empty template ID for AI voiceover. | | Missing Music | Add autoAddMusic: true parameter in PUBLISH TO TIKTOK step for music. | | Wrong Heygen API Key and IDs | Check you've copied HEYGEN AVATAR ID correctly, not the Avatar GROUP ID. | | You're On Heygen Free Plan | HeyGen API requires $99/mo API plan. Free API plan won't work. | | Your Avatar Has a Background | Set matting to false and remove background section for default avatar background. | | Invalid JSON Error | Validate JSON at jsonlint.com and compare with Contouron API docs. | | The service is receiving too many requests from you | Rate limit exceeded. Upload Media: 30 requests/minute. Publish Post: 30 requests/minute. | | The aspect ratio is not supported | Video aspect ratio not supported by platform. Check platform requirements. | | body/template/id must be equal to constant | Pass template object with id. See API examples for correct format. | | scenes.0: missing object | Incorrect JSON format for scenes array in CREATE VISUAL node. Each template has a specific scenes format -- find your template's exact format with examples at [Visual Templates](https://help.contouron.com/api/visuals). To debug: (1) Select template in n8n/Make, (2) Remove ALL parameters including Prompt, (3) Run the step, (4) Check [API Dashboard](https://my.contouron.com/api-dashboard) to see the exact JSON structure your template expects. | | slides.image: must be at most 400 characters | The image field expects a short public URL (e.g. ), not a base64 string or data blob. Keep image URLs under 400 characters. | | mediaURL is null or empty | Video not done. Increase wait time or check if you have AI credits. | | Cannot read properties of undefined (reading 'mediaUrl') | You're trying to publish before the visual/video is finished rendering. After your Create Visual step, add a Get Visual step and wait until the status is "done", then map the mediaUrl into the Publish step's Media URLs field. If the visual creation failed or you ran out of AI credits, the mediaUrl will never be produced. | | Cannot read properties of undefined (reading 'status') | The social platform (Instagram, TikTok, etc.) did not return a response. This is usually a temporary issue. Wait a few minutes and retry. If the error persists, check that your media file is in a supported format: [Social Platform Requirements](/tips-and-tricks/social-platform-requirements.md). In the web app, retry from the [Failed Posts](https://my.contouron.com/failed) screen. | | Failed to upload stream to Supabase | The media file could not be saved to storage. Common causes: the source URL is not publicly accessible, the URL points to a preview page instead of the direct file, the file is too large, or the media file is corrupted. Open the media URL in an incognito browser window to verify it downloads directly. If using Google Drive, use a direct download link, not a /view link. | | Failed to fetch media URL: char '...' is not expected.:1:1 (often shown in n8n alongside "Deserialization error: to see the raw response, inspect the hidden field {error}.$response on this object.") | Contouron downloaded the URL in your `mediaUrls`, but the response was not binary media -- it was plain text (the first character of that text shows up in the error, e.g. `e` for "expired" or "error..."). Open `{error}.$response` in n8n to read the actual body the URL returned. Common causes: 1) Signed URL expired before Contouron fetched it (Canva exports, S3 presigned URLs, Google Drive). 2) URL points to a preview page or folder, not a direct file (e.g. Google Drive `/view`). 3) Auth or CDN bot protection on the host. Fixes: For Google Drive use `https://drive.usercontent.google.com/download?id=FILE_ID&export=download&confirm=t`. For Canva, pass the export URL directly into `mediaUrls`. For local files, upload via Contouron's presigned upload flow and publish using the returned `publicUrl`. See: Posts failing with "Could not fetch media". | | Please review our URL ownership verification rules | TikTok rejects certain URLs. Try using a different hosting service for your media, or use the optional Contouron Upload endpoint first: | | Tiktok's servers may be experiencing issues. This is a retryable error | TikTok server issue or posting too frequently. Wait and retry. | | Could not refresh TikTok access\_token: Service Unavailable | TikTok's servers temporarily rejected the token refresh. Wait 15-30 minutes and retry. If the error persists, reconnect your TikTok account in [Settings > Social Accounts](https://my.contouron.com/settings). | | JSON value expected but got '<' at position 0 (TikTok) | TikTok's API returned an HTML error page instead of a JSON response. This is a temporary TikTok server issue (outage, rate limiting, or maintenance). Your post payload is valid. Retry after a few minutes. If it keeps failing, reconnect your TikTok account in [Settings > Social Accounts](https://my.contouron.com/settings). | | Threads API Feature Not Available: This user does not have access to this Threads API feature | Link Instagram account to Threads. Warm up Threads account for a few days with posts before connecting to Contouron. | | Failed to read media metadata. Is the file accessible and a valid media file? | Three causes, in order of likelihood: 1) **File not publicly accessible.** Open the URL in an incognito browser and confirm it downloads the raw file. For Google Drive, set the file to "Anyone with the link" as Viewer and use a direct download URL: `https://drive.usercontent.google.com/download?id=FILE_ID&export=download&confirm=t` 2) **File exceeds your plan's upload size cap on the URL-fetch path.** Large files (for example 77MB) fail `POST /v2/media` even when the URL is a clean public file. Switch to the Presigned Upload flow, which handles large binaries via direct PUT and skips the metadata-fetch step. See [Plan Limits](/settings/billing-and-credits.md#plan-limits). 3) **Intermittent metadata-reader flake.** If the exact same call on the same small file passes sometimes and fails other times, the URL is not the problem. Wrap `/v2/media` in a 2-attempt retry with a 3-second delay, or switch to presigned upload, which runs through a different code path and avoids the issue entirely. | | Google Drive virus scan warning popup blocking media access | Google Drive shows virus scan warnings for large files (>25MB typically) or files it cannot scan. This blocks automated access to your media. **Solutions**: 1) Use the direct download URL format: `https://drive.usercontent.google.com/download?id=FILE_ID&export=download&confirm=t` which bypasses the warning page. 2) For files >50MB, use a different hosting service like AWS S3, Dropbox, or direct server hosting instead of Google Drive. 3) For automation workflows, consider using cloud storage with proper API access rather than Google Drive shared links. | | Base64 data is too large, maximum size is 20MB | This error happens when uploading media larger than 15MB via the n8n Upload "Binary Data" option. Switch to URL-based upload: use the Presigned Upload endpoint to upload directly to Contouron, or host on AWS S3/GCP and pass the URL. See: [Plan Limits](/settings/billing-and-credits.md#plan-limits) for more details on max upload sizes. | | Visual creation fails or images are blank when using self-hosted image URLs | Your server's firewall or CDN (e.g., Cloudflare) is blocking Contouron from fetching your images. Contouron's servers make server-to-server requests to download media, which bot-protection rules block. Add a firewall rule to allow these requests, or host your images on a service without bot protection (e.g., a public S3 bucket, Imgur, or the Contouron [Upload endpoint](https://help.contouron.com/api/api-reference/upload-media-v2-media)). Test accessibility with `curl ` from another server. | | Error posting to Instagram: No error |

I've noticed a recent glitch with Instagram API that sometimes returns "No Error" and video rejected, but this looks like an issue on IG side, as I haven't changed anything on the Contouron side. I'll keep monitoring it, but I generally recommend the following:

  • reduce the number of hashtags
  • reducing the length of caption
  • increasing time between posts
| | Could not publish on Instagram: Error validating access token: Sessions for the user are not allowed because the user is not a confirmed user | This error comes from Instagram/Meta. The Instagram account session is not confirmed. To fix: 1) Log into the Instagram account in a browser and complete any pending prompts (email/phone confirmation, security checkpoints, updated terms). 2) Reconnect the account in Contouron: go to Settings > Social Accounts, disconnect and reconnect using an incognito browser logged into only that Instagram account. 3) Verify the account is a Professional or Business account (personal accounts have issues with third-party publishing). See: | | Instagram allows a maximum of 5 hashtags per post | This is a Contouron guardrail, not an Instagram rule. Instagram itself allows more hashtags, but Contouron caps posts at 5 on purpose because more than 5 hashtags reduces your reach on Instagram, TikTok, and Facebook. Fix: trim your caption to 5 hashtags or fewer and republish. See [hashtag rules by platform](/tips-and-tricks/social-platform-requirements.md#hashtags) and [how many hashtags to use](/support/faqs.md#how-many-hashtags-should-i-use). | ### Source / Ingestion Errors | Error | Explanation | | ----------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | TikTok video has no captions / transcript extraction failed | Contouron extracts the transcript from TikTok videos to use as a source. If the TikTok video has no captions (subtitles), Contouron cannot pull the transcript. Try a different TikTok video that has captions, or copy-paste the video's content as a Text source instead. | ### Connection Errors | Error | Explanation | | ---------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 400 Session Error Connecting Instagram Account | Sometimes connection succeeds despite error. Test with a post first. If not, use incognito browser, log out of other accounts, log into only the target account, then reconnect. | | Unable to connect LinkedIn company page | Verify you're an Admin of the page. Use incognito browser, log into social account, then Contouron, and reconnect. | | YouTube Unauthorized error | Use incognito browser. Log into YouTube, then Contouron. Reconnect account. Update YouTube account ID in automation workflows. | | Unable to connect social account (general) | Use incognito Chrome browser. Log into social account first, then Contouron. Connect account. | | invalid\_grant (Instagram/Meta) | The Instagram/Meta authorization token expired. Go to [Settings > Social Accounts](https://my.contouron.com/settings), find the Instagram account, and click Reconnect. This error often causes follow-on "mediaUrl" TypeErrors -- fix the token first. | | invalid\_grant (Claude Cowork / MCP) | Your Contouron MCP OAuth connection expired. In Claude, open **Customize > Connectors**, remove and re-add the Contouron custom connector, and re-approve access via OAuth. This is separate from reconnecting a social account. See: MCP Setup | | Contouron shows "Connected" in Claude Settings, but Claude.ai returns an OAuth error when asked to list accounts | Contouron API and MCP require a paid subscription. Go to [Settings > API](https://my.contouron.com/settings/api) and click "Generate API Key" to activate your paid subscription. | ### Comments Errors | Error | Explanation | | ------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Comment failed to post (error code 20201) | The social platform rejected the comment. Check the comment's `errorMessage` for the reason. Common causes: the parent post was removed, the comment triggered the platform's spam rules, or the account lost comment permissions. Reduce how often you comment and retry. See [Comments API](/api/comments.md). | | Active contacts limit reached (error code 20101) | You reached the maximum active contacts for your plan this month by replying to audience comments (Starter 100, Creator 250, Agency 1000). Your count resets at the start of next month. Upgrade your plan to raise the limit. See [Comments API](/api/comments.md). | ### Messaging Errors | Error | Explanation | | ------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Active contacts limit reached (error code 20101) | You reached the maximum active contacts for your plan this month by messaging new people. Your count resets at the start of next month. Upgrade your plan to raise the limit. See [Active Contacts](/settings/billing-and-credits.md#active-contacts). | | Message failed to send (error code 20102) | The social platform rejected the message. Check the message's `errorMessage` for the reason. Common causes: the 24-hour messaging window closed, the comment you replied to is invalid, or the account lost messaging permissions. See [Messages API](/api/messages.md). | ### Platform-Specific Errors | Error | Explanation | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Post failed to publish. Could not upload video | Each platform has different requirements for video uploads. Check that your video follows the requirements here: | | Video duration exceeds the maximum convertible duration of N seconds | Your video required conversion (resizing, re-encoding, bitrate adjustment, etc.) to meet the platform's format requirements, but the video is too long to convert. Contouron caps video conversion at 2 minutes, even when the target platform allows longer videos. To fix: 1) Trim your video to under 2 minutes; or 2) Pre-encode your video to match the platform's specs exactly (correct codec, aspect ratio, resolution, bitrate) so no conversion is needed. Check [Social Platform Requirements](/tips-and-tricks/social-platform-requirements.md) for each platform's specs. | | The user has exceeded the number of videos they may upload (YouTube) | YouTube upload limit reached. Wait 24 hours. Check API quota in Google Cloud Console. Verify account. | | You have reached the maximum number of 10 posts for the last 24 hours for this account (YouTube) | YouTube enforces a limit of 10 uploads per channel per 24 hours via API. Wait 24 hours and try again, or upload directly via the YouTube website. This is a YouTube limit, not a Contouron limit. | | Unsupported picture size (TikTok) | TikTok rejects images that do not meet its format requirements. TikTok accepts WebP and JPEG only (no PNG). Max resolution: 1080 pixels. Max file size: 20 MB per image. Convert PNG images to JPEG before posting. Full specs: [Social Platform Requirements](https://help.contouron.com/tips-and-tricks/social-platform-requirements#tiktok) | | TikTok views consistently < 50 | Account likely shadowbanned. Start fresh with new account. | | TikTok views consistently \~200 | TikTok doesn't know your video topic. Use niche keywords in title, description, and audio. | | Single TikTok video stuck at low views | Change video privacy to PRIVATE, close app, reopen, switch back to EVERYONE. | | TikTok account banned | Account not warmed up properly. Follow warm-up guide. Don't post more than 3x/day via API. Stay active on account. | | Escape Multi-Line Paragraphs error | Long text with linebreaks needs escaping. In n8n use toJsonString() function. | | Brand New Account error | Account not warmed up. Don't connect 3rd party apps until account is established with manual posts. | | Sorry! This site doesn't allow you to save Pins. | This error is from Pinterest. Two common causes: 1) The website indicated they do not want to be pinned. 2) Pinterest's blocklist flagged your URL (often a false positive). Workaround: append parameters to your link (e.g., `?ref=pin&v=111`) so Pinterest sees it as a new URL that bypasses the filter. | | Pinterest API access is temporarily restricted to verified accounts only | Your Pinterest still looks pretty new. You MUST warm it up for 2 weeks before connecting to 3rd party posting tools like Contouron. Failing to do this often results in being shadowbanned or flagged by Pinterest. Start posting 1 pin per day manually, then gradually ramp up to 2, then 3, etc. pins per day. Once you get 100+ views per month, then reconnect your Pinterest account with Contouron and it will be automatically verified. | | Error posting to Facebook: (#200) requires pages\_read\_engagement and pages\_manage\_posts permission (the full message may also mention "If posting to a group..." and "requires both pages\_read\_engagement and pages\_manage\_posts as an admin with sufficient administrative permission") | Facebook Page permissions are incomplete or partially authorized, or you do not have a full Admin role on the Page. Contouron publishes to Facebook **Pages** only -- it cannot post to Facebook **Groups** or personal profiles. Go to [Settings > Social Accounts](https://my.contouron.com/settings), click Reconnect for your Facebook account. In the Meta permissions popup, select "Opt in to current Pages only" and check each Page individually. Confirm you have a full **Admin** role on the Page (an Editor, Advertiser, or Analyst role is not enough) -- [check your Page role](https://www.facebook.com/help/510247025775149). If the Page still fails, remove the Contouron app from Meta Business Suite (Settings > Accounts > Apps) and reconnect fresh. See: Facebook Connection Guide | | Please reduce the amount of data you're asking for, then retry your request (may also appear as "Could not upload video to Facebook: ...") | Facebook/Meta API server-side error -- not a Contouron bug. It is more common on larger Pages or groups, often around 5,000+ followers, because Facebook may run out of memory while processing the publish request, and it can affect any post type (text, image, link, or video). Retry publishing the post -- it often succeeds on a later attempt. First check the Facebook Page, because the post can sometimes publish successfully even though the API reports a failure. If it did not publish, wait a few minutes and retry from [Failed Posts](https://my.contouron.com/failed). If the post uses Page mentions, try removing the mention and adding it manually later on Facebook. If the error persists across multiple retries over an hour, submit a support ticket via in-app chat with the post ID, timestamp, and Facebook Page follower count. See: Facebook Errors | | Error posting to Instagram: We restrict certain activity to protect our community. | Instagram made a final decision based on risk/spam scores. To fix: 1) Reduce the number of hashtags. 2) Reduce your caption length. 3) Increase time between posts. 4) If none of the above works, try posting manually to warm up your account and prove to Instagram you're not a bot. | | Cannot read properties of undefined (reading 'mediaUrl') | This Instagram-specific error has multiple causes: 1) Expired Instagram token -- check for `invalid_grant` errors in your [API Dashboard](https://my.contouron.com/api-dashboard) and reconnect the account in [Settings](https://my.contouron.com/settings). 2) The `content.mediaUrls` array is empty or contains URLs that are not publicly accessible. 3) In n8n/Make workflows, the node upstream of the Publish node is not outputting a media URL -- verify the Create Visual step completed with status "done". Fix the token first, as expired tokens cause this error most frequently. | | Could not publish on Instagram: Unsupported post type. The post has too little or too many attachments to qualify as a carousel | Via API, Instagram supports a maximum of 10 images or videos per carousel. See: | | This user is not allowed to post a video longer than 2 minutes (X/Twitter 403 Forbidden) | X/Twitter limits video length based on account type. Free accounts are limited to 2-minute videos. To post longer videos, upgrade to X Premium. | | You are not permitted to perform this action (X/Twitter 403 Forbidden) | Twitter/X authorization expired or permissions changed. Go to [Settings > Social Accounts](https://my.contouron.com/settings), find your Twitter account, and click Reconnect. Re-authorize the app when prompted. Retry your post after reconnecting. | | You are not allowed to create a Tweet with duplicate content (X/Twitter 403 Forbidden) | X/Twitter rejects posts with identical text to a previous tweet on your account. Change the caption text (even slightly) before reposting. If you scheduled the same post twice by accident, delete the duplicate from [Upcoming Posts](https://my.contouron.com/queue/calendar). | | Post published twice / duplicate post | A timeout during publishing caused Contouron to retry, resulting in two posts on the social platform. Delete the duplicate from the social platform. If this happens repeatedly, submit a support ticket with the post URLs and timestamps. | | Bluesky posts publish without images (API) | Known bug affecting image attachments to Bluesky posts via API. The post publishes but images are missing. Contact support via in-app chat for status updates. | | Unsupported picture size (TikTok) | TikTok rejected the image. Ensure the image is in JPEG or WebP format (not PNG), under 20 MB, and max 1080 pixels resolution. See: [Social Platform Requirements](/tips-and-tricks/social-platform-requirements.md#tiktok) | | The parent job ... cannot be replaced. addJob | This error comes from the internal media conversion queue when multiple publish attempts try to use the same job ID instead of creating a new one. Common causes: 1) Your automation runs parallel publish attempts for the same post, 2) WAIT time too short - previous conversion still in progress, 3) Publishing before mediaURL/asset is ready. Fix: In n8n/Make automations, ensure only one publish attempt runs at a time and wait for mediaURL to be ready before publishing. Check API Dashboard for the exact failed request details. | | Failed to publish TikTok post after 3 retries (Unknown error reason) | Temporary TikTok-side outage, not a Contouron issue and not a credits issue. Retrying immediately or reconnecting the account usually will not help, and a public status page will not always show it (some outages affect only certain regions or posts from external URLs). Wait a few hours and retry from [Failed Posts](https://my.contouron.com/failed). If several recent TikTok posts fail at once, message in-app chat support to confirm a known TikTok outage and receive +3000 credits for the inconvenience. | | TikTok post disappears and never appears (stuck "buffering," not in Failed Posts) | The post leaves Upcoming Posts, then never shows on TikTok, in Published Posts, or in Failed Posts, with no request in the [API Dashboard](https://my.contouron.com/api-dashboard). This is a TikTok-side issue processing videos from external URLs -- the post stays stuck in "publishing" so TikTok never returns success or failure, which is why it does not land in Failed Posts. Not a credits or Contouron queue issue, and can affect only certain regions (for example, European accounts). Wait a few hours, then repost with a longer lead time. Message in-app chat support with the account name and scheduled time to confirm a known TikTok outage and receive credits. See: TikTok FAQs. | | Post shows "published" but does not appear on the platform | The social platform accepted the post but later delayed or suppressed it. Wait 10-15 minutes, then check the post URL from [Published Posts](https://my.contouron.com/queue/calendar). If the URL returns 404, the platform removed it (spam filter, account health). Reduce posting frequency and engage organically. | | No available slot time found in the next year | You used `useNextFreeSlot: true` but no schedule slots exist for the target platform/account. Go to [Schedule Slots](https://my.contouron.com/queue/slots) and create schedule slots that match the platform you are publishing to. Each slot must include the specific platform -- a slot for "Instagram" does not match a LinkedIn post. See: [Schedule Slots API](/api/schedule-slots.md) | ### Plan Limit Errors These errors are returned when you exceed one of your Contouron plan limits. For the full table of limits per plan, see [Plan Limits](/settings/billing-and-credits.md#plan-limits). | Error | Explanation | | ---------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | You have reached the maximum number of connected accounts (N) for your plan. Please disconnect some accounts or upgrade your plan. | You hit the connected-accounts cap for your plan. Disconnect an account in [Settings > Social Accounts](https://my.contouron.com/settings) or upgrade. Facebook Pages and LinkedIn Company Pages do not count toward the limit. See: [Plan Limits](/settings/billing-and-credits.md#plan-limits) | | You have reached the maximum number of scheduled posts (N) for your plan. Please remove some scheduled posts or upgrade your plan. | You hit the queued-scheduled-posts cap. Delete upcoming posts from [Upcoming Posts](https://my.contouron.com/queue/calendar) or upgrade your plan. See: [Plan Limits](/settings/billing-and-credits.md#plan-limits) | | Scheduled time is too far in the future. | Your scheduled time is past your plan's horizon. Pick a time within your plan's window or upgrade. See: [Plan Limits](/settings/billing-and-credits.md#plan-limits) | | File exceeds the maximum upload size (N MB) for your plan. Upload a smaller file, or upgrade your plan to increase your max upload size. | Your media file is larger than your plan's upload cap. Compress or trim the file, or upgrade. See: [Plan Limits](/settings/billing-and-credits.md#plan-limits) | ### Account Limits | Platform | Limit | Explanation | | --------------------- | ------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | TikTok (Starter Plan) | 3 unique accounts per 24h, 10 posts per account | Limit applies to Starter plan only. Creator and Agency plans unrestricted. | | Instagram | 50 posts per day per account | Hard limit per 24-hour window. | | Pinterest | 10 pins per day per account | Auto-verified by Contouron when you reconnect, provided your Pinterest has 100+ monthly views from a 2-week manual warm-up (1 pin/day ramping to 3/day). | | Facebook | 35 posts per 24h per Facebook account (not per Page); 5 per day per Page recommended | The 35-post cap is enforced per parent Facebook account across all connected Pages, so 3 Pages each posting 12 times exceeds it. Posting above 5 per day per Page also negatively impacts post reach. | | YouTube | 10 uploads per channel per 24h via API | YouTube-enforced limit. New channels may have lower quotas. Upload via YouTube website to bypass. | For full details on platform posting limits, see: ### App Errors | Error | Explanation | | -------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Application error: a client-side exception has occurred while loading my.contouron.com | This is almost always a browser issue, not your account. Start with a hard refresh. If it persists, follow the full checklist in [App Won't Load (client-side exception)](#app-wont-load-client-side-exception) below. | ### Troubleshooting Steps #### App Won't Load (client-side exception) If you see "Application error: a client-side exception has occurred while loading my.contouron.com" (often after a few loading screens, and you cannot log in), it comes from your browser, not your Contouron account. Work through these steps in order: 1. Refresh the page first. This clears it more often than you would expect. 2. Open [my.contouron.com/login](https://my.contouron.com/login) in an incognito window, logged out of other accounts. 3. Still stuck? Try a different browser or your phone to see if the issue is only on one device. 4. Turn off ad blockers and privacy extensions (uBlock, Ghostery, and similar), then reload. 5. Clear site data for contouron.com only: click the padlock by the URL, open Site settings, click Clear data, then log in fresh. 6. If none of that helps, open the browser console when the error shows (right-click the page, Inspect, Console tab), screenshot it, and send it to support through the in-app messenger. #### General Connection Issues 1. Open incognito Chrome browser 2. Log out of all other accounts 3. Log into target social account only 4. Log into Contouron 5. Connect account #### API Issues 1. Check your [API Dashboard](https://my.contouron.com/api-dashboard) - click on any request to see the full payload, error response, and which account it was sent to 2. Verify API keys copied correctly without spaces 3. Check you have sufficient AI credits 4. Validate JSON at jsonlint.com 5. Compare your request with API documentation #### Account Health Issues 1. Warm up new accounts manually for several days 2. Post organically before connecting to Contouron 3. Stay active on account (reply to comments, engage) 4. Don't exceed platform posting limits 5. Use platform-appropriate content formats --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://help.contouron.com/support/error-reference.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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