Fatal error: Uncaught Error: Class "Sonata\BlockBundle\Model\Block" not found in /home/flighto/e-commerce/vendor/sonata-project/block-bundle/src/Model/EmptyBlock.php:19 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sonata-project/block-bundle/src/Model/EmptyBlock.php on line 19