One of our users created a directory with a “?” in the name. The MacOS Owncloud Client (2.30 buld 4097) uploaded it, and now it’s visible in the web frontend, but all clients now fail to synchronize:
/remote.php/webdav/…/something%3F - server replied: Internal Server Error
Deletion or renaming or even just entering the directory is not possible via the web frontend either. (Error deleting / Could not rename / The directory is unavailable).
I deleted the directory from the data directory on the server, but somehow it did not disappear.
How can I get rid of that directory again?
(This is Nextcloud 12.0.2)