Fatal error: Uncaught Error: Class 'Twig_Extension' not found in /home/eberhardschwarze/public_html/vendor/doctrine/doctrine-bundle/Twig/DoctrineExtension.php:13 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/doctrine/doctrine-bundle/Twig/DoctrineExtension.php on line 13