Fatal error: Uncaught Error: Class "OCP\AppFramework\Http\ContentSecurityPolicy" not found in /home/tzuovhm/tzuovhm/nextcloud/lib/private/Security/CSP/ContentSecurityPolicy.php:18 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/nextcloud/lib/private/Security/CSP/ContentSecurityPolicy.php on line 18