Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Extension\Extension' not found in /home/eberhardschwarze/public_html/vendor/contao-community-alliance/event-dispatcher/src/DependencyInjection/CcaEventDispatcherExtension.php:28 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao-community-alliance/event-dispatcher/src/DependencyInjection/CcaEventDispatcherExtension.php on line 28