Fatal error: Uncaught Error: Interface "Symfony\Component\HttpKernel\KernelInterface" not found in /home/marcgron/www/SSA/v2/vendor/symfony/http-kernel/Kernel.php:53 Stack trace: #0 {main} thrown in /home/marcgron/www/SSA/v2/vendor/symfony/http-kernel/Kernel.php on line 53