Fatal error: Uncaught Error: Class 'Twig_Extension' not found in /home/eberhardschwarze/public_html/vendor/contao/core-bundle/src/Twig/Extension/ContaoTemplateExtension.php:23 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao/core-bundle/src/Twig/Extension/ContaoTemplateExtension.php on line 23