Fatal error: Uncaught Error: Class "OCP\AppFramework\Http\ContentSecurityPolicy" not found in /home/tremblinlu/MyNextCloud/nextcloud/lib/private/Security/CSP/ContentSecurityPolicy.php:37 Stack trace: #0 {main} thrown in /home/tremblinlu/MyNextCloud/nextcloud/lib/private/Security/CSP/ContentSecurityPolicy.php on line 37