Fatal error: Uncaught Error: Interface "League\Event\ListenerAcceptorInterface" not found in /home/itcarrot/public_html/funk-uberdachung-muc.de/vendor/league/event/src/ListenerAcceptor.php:5 Stack trace: #0 {main} thrown in /home/itcarrot/public_html/funk-uberdachung-muc.de/vendor/league/event/src/ListenerAcceptor.php on line 5