Fatal error: Uncaught Error: Class 'Twig\Extension\AbstractExtension' not found in /home/clapsabo/test/vendor/alterphp/easyadmin-extension-bundle/src/Twig/CheckboxTreeExtension.php:10 Stack trace: #0 {main} thrown in /home/clapsabo/test/vendor/alterphp/easyadmin-extension-bundle/src/Twig/CheckboxTreeExtension.php on line 10