Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /home/amper418/shopv2.amperio.ch/vendor/shopware/storefront/DependencyInjection/StorefrontExtension.php:13 Stack trace: #0 {main} thrown in /home/amper418/shopv2.amperio.ch/vendor/shopware/storefront/DependencyInjection/StorefrontExtension.php on line 13