Fatal error: Uncaught Error: Interface 'Symfony\Component\HttpKernel\HttpKernelInterface' not found in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/http-kernel/HttpKernel.php:52 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/http-kernel/HttpKernel.php on line 52