Fatal error: Uncaught Error: Interface "Silex\ServiceProviderInterface" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/knplabs/knp-menu/src/Knp/Menu/Integration/Silex/KnpMenuServiceProvider.php:22 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/knplabs/knp-menu/src/Knp/Menu/Integration/Silex/KnpMenuServiceProvider.php on line 22