Resolved. The fix is deployed and verified. Please reload once with Ctrl+F5 so your browser picks up the new version.

A check in the build now covers this case so it cannot come back unnoticed.

Cause found and fixed.

When uploading, the file manager told the API only the directory instead of the full target path with the file name. In a server's root that became /, which the API rightly refused. So every upload from the root directory was affected, whatever the file type.

The fix is deployed. We keep this open until we see successful uploads. Please reload the page once (Ctrl+F5).

Uploads fail in the file manager. Reported for .jar on game servers and .zip on Discord bots; the interface says "Please check the highlighted fields".

Not affected:

• Your servers and bots keep running normally.
• Console, start, stop and restart work.
• Reading, editing and downloading files works.
• Backups, databases and renewals are untouched.

In the meantime you can upload via SFTP — port 2222, the credentials are in the dashboard under SFTP next to your server.