Fatal error: Uncaught Error: Class 'OC\Setup\AbstractDatabase' not found in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/private/Setup/MySQL.php:34 Stack trace: #0 {main} thrown in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/private/Setup/MySQL.php on line 34