Unsuccessful upgrade to lastest version!
DW url: http://1-veda.info/wiki/doku.php
It worked, but after upgrade it shows such errors:
DokuWiki Setup Error
The mediaolddir ('media_attic') at ./data/media_attic is not found, isn't accessible or writable. You should check your config and permission settings. Or maybe you want to run the installer?
What went wrong during automatically upgrade (upgrade plugin) ?
What to check?
How to roll-back? (there is no backup)