Fatal error: Uncaught Error: Class 'OCP\App\AppManagerException' not found in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/public/App/AppAlreadyInstalledException.php:28 Stack trace: #0 {main} thrown in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/public/App/AppAlreadyInstalledException.php on line 28