Fatal error: Uncaught Error: Class "Twig\Extension\AbstractExtension" not found in /home/flighto/e-commerce/vendor/sonata-project/block-bundle/src/Twig/Extension/BlockExtension.php:20 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sonata-project/block-bundle/src/Twig/Extension/BlockExtension.php on line 20