Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Exception\NotFoundHttpException" not found in /home/flighto/e-commerce/vendor/sonata-project/block-bundle/src/Exception/BlockNotFoundException.php:18 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sonata-project/block-bundle/src/Exception/BlockNotFoundException.php on line 18