Fatal error: Uncaught Error: Interface "League\Event\ListenerInterface" not found in /home/.sites/114/site713/web/energiepackung2024/vendor/league/event/src/CallbackListener.php:5
Stack trace:
#0 {main}
  thrown in /home/.sites/114/site713/web/energiepackung2024/vendor/league/event/src/CallbackListener.php on line 5