Fatal error: Uncaught Error: Class "OCP\AppFramework\Middleware" not found in /home/tzuovhm/tzuovhm/lib_/private/AppFramework/Middleware/Security/SecurityMiddleware.php:55 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/lib_/private/AppFramework/Middleware/Security/SecurityMiddleware.php on line 55