Fatal error: Uncaught Error: Interface "ILIAS\HTTP\Response\Sender\ResponseSenderStrategy" not found in /var/www/html/ilias/components/ILIAS/HTTP/src/Response/Sender/NullResponseSenderStrategy.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/HTTP/src/Response/Sender/NullResponseSenderStrategy.php on line 28