Fatal error: Uncaught Error: Interface 'Contao\ManagerPlugin\Bundle\Config\ConfigResolverInterface' not found in /home/eberhardschwarze/public_html/vendor/contao/manager-plugin/src/Bundle/Config/ConfigResolver.php:15 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao/manager-plugin/src/Bundle/Config/ConfigResolver.php on line 15