Fatal error: Uncaught Error: Class 'Symfony\Bundle\FrameworkBundle\Controller\Controller' not found in /home/eberhardschwarze/public_html/vendor/contao/core-bundle/src/Controller/FrontendController.php:29 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao/core-bundle/src/Controller/FrontendController.php on line 29