Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/symfony/messenger/EventListener/AddErrorDetailsStampListener.php:18 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/symfony/messenger/EventListener/AddErrorDetailsStampListener.php on line 18