After a spam attack (because I allowed everyone to register without being notified) I had to edit / restore my dokuwiki installation.
Now everything is fine as before - only no one, including me as admin, can edit a page anymore (:
The "EDIT PAGE" Button is simply not displayed.
I checked and unchecked the "Edt page" checkbox in the config "Disable Dokuwiki actions" - no effect.
Maybe I changed or deleted some metadata with the restore, and I ran "Cache revision eraser".
So how can one reset the access configuration?