When you try to follow a user on Mastodon and see the error message “You Cannot Follow This User,” it usually means the account is set to locked or private mode. This restriction prevents automatic follow approval and requires the account owner to manually accept or reject your request. The error can also appear if … Read more
When you upload a video to Mastodon and see the error message “Could Not Process Video,” the upload fails and the video never appears in your post. This error typically occurs because the video file does not meet Mastodon’s strict media requirements for format, size, resolution, or duration. This article explains the exact technical reasons … Read more
When setting up Mastodon with an S3-compatible storage backend, you may encounter the error ‘Media could not be stored’ when users try to upload images, videos, or other files. This problem typically occurs due to misconfigured S3 bucket permissions, incorrect endpoint URLs, or missing environment variables in your Mastodon configuration. This article explains the root … Read more
When you try to save changes to your Mastodon profile, you may see a generic “Server Error” message instead of a successful update. This error can appear after editing your display name, bio, avatar, header image, or any other profile field. The problem is often caused by a file that is too large, a corrupted … Read more
When you run a Mastodon server and try to re-federate a user profile from the admin panel, you might see the error “Could not re-federate profile.” This error means the server failed to push the profile data to other instances in the fediverse. The cause is usually a temporary network issue, a misconfigured domain block, … Read more
You try to log in to Mastodon using a third-party app like Tusky, Fedilab, or Metatext and see the error message: OAuth App Authorization Failed. This error occurs because the OAuth handshake between the app and the Mastodon server breaks due to a mismatched redirect URI, expired token, or blocked callback. This article explains the … Read more
When you try to open the Mastodon admin dashboard and see the error message ‘You are not authorized,’ you cannot manage users, view reports, or change server settings. This error usually means your account does not have the correct admin role assigned in the database or the role has become corrupted. This article explains the … Read more
When you search for a user on Mastodon by their full handle, you may see the error message “Lookup Failed” instead of the profile results you expect. This happens because Mastodon searches across the federated network of instances, and the lookup request can fail due to connectivity problems, instance blocks, or incorrect handle formatting. This … Read more
When you try to enable web push notifications in Mastodon, you may see the error Push Notification Failed. This stops the browser from sending real-time alerts for replies, boosts, and follows. The error usually happens because the browser cannot register a service worker or the push subscription endpoint is blocked. This article explains the three … Read more
When scrolling through your Mastodon timeline, you might see the message Could not load more posts. This error stops you from viewing older toots and can interrupt your browsing. The problem often comes from a temporary network issue, a server-side rate limit, or a corrupted local cache. This article explains the root causes and provides … Read more