Fatal error: Uncaught Error: Class "Twig_Extension" not found in /var/www/html/test/steintiger/vendor/phive/twig-extensions-deferred/src/DeferredExtension.php:5 Stack trace: #0 {main} thrown in /var/www/html/test/steintiger/vendor/phive/twig-extensions-deferred/src/DeferredExtension.php on line 5