I did an upgrade from 0.5.0 to 0.5.1 and had one missing widget (page views). Now I upgraded to 0.5.2. and I get the following message trying to upgrade the database:
Kritischer Fehler während dem Upgrade-Prozess:
Edit config.ini.php and add to [superuser] section: salt = f548e8d84d3b975cc58367d64ef38823
I edited then the config.ini.php but with no result.