Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/amper418/shopv2.amperio.ch/vendor/symfony/psr-http-message-bridge/EventListener/PsrResponseListener.php:27 Stack trace: #0 {main} thrown in /home/amper418/shopv2.amperio.ch/vendor/symfony/psr-http-message-bridge/EventListener/PsrResponseListener.php on line 27