Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher' not found in /home/yzi/RuntimeEnviroment/website/vendor/symfony/http-kernel/Tests/Fixtures/TestEventDispatcher.php:16 Stack trace: #0 {main} thrown in /home/yzi/RuntimeEnviroment/website/vendor/symfony/http-kernel/Tests/Fixtures/TestEventDispatcher.php on line 16