Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Event\GetResponseEvent' not found in /home/app/htdocs/ninja/vendor/symfony/http-kernel/Event/GetResponseForControllerResultEvent.php:26 Stack trace: #0 {main} thrown in /home/app/htdocs/ninja/vendor/symfony/http-kernel/Event/GetResponseForControllerResultEvent.php on line 26