Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Normalizer\NormalizerInterface" not found in /home/amper418/shopv2.amperio.ch/vendor/shopware/core/Framework/MessageQueue/SendEmailMessageJsonSerializer.php:15 Stack trace: #0 {main} thrown in /home/amper418/shopv2.amperio.ch/vendor/shopware/core/Framework/MessageQueue/SendEmailMessageJsonSerializer.php on line 15