[Admins]

In-game bugs should be reported here yes, since they can often solved by other players, or need some discussion about how it should be solved, or could be read later by other players who have the same problem.

It seems you have too many files in the folder, so there are problems when it is sending the whole folder to you. Eventually modify your folder rights to only view a few files (e.g. rw levels/*.nw), then it should only display those and should not produce the error. Then move the files to another folder (organize the files), and continue with other file types (png, gif etc.) until you can watch the whole levels folder again.