Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Event\GetResponseEvent" not found in C:\Apache24_x64\htdocs\origin_cms\vendor\symfony\http-kernel\Event\RequestEvent.php:23 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\origin_cms\vendor\symfony\http-kernel\Event\RequestEvent.php on line 23