SymptomsFile Manager does not show any files inside a folder. It looks like an empty directory. However, this directory once contained files or sub-folders.
The following error could be shown:
WebExecutor directory listing : Receiving filelist from server failed.
Server response: "450 webspace/httpdocs/domain.tld/: Permission denied"
CauseWrong permissions are set on the directory. The "execute" permission for the owner on the directory is missing.
An "execute" permission on a directory means you can list the files in that directory.