Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in /home/flighto/e-commerce/vendor/payum/payum-bundle/DependencyInjection/PayumExtension.php:29 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/payum/payum-bundle/DependencyInjection/PayumExtension.php on line 29