Fatal error: Uncaught Error: Class "Symfony\Bundle\FrameworkBundle\Controller\AbstractController" not found in /home/amper418/shopv2.amperio.ch/vendor/shopware/core/Content/MailTemplate/Api/MailActionController.php:21 Stack trace: #0 {main} thrown in /home/amper418/shopv2.amperio.ch/vendor/shopware/core/Content/MailTemplate/Api/MailActionController.php on line 21