Fatal error: Uncaught Error: Class 'OCP\AppFramework\Http\ContentSecurityPolicy' not found in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/private/Security/CSP/ContentSecurityPolicy.php:30 Stack trace: #0 {main} thrown in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/private/Security/CSP/ContentSecurityPolicy.php on line 30