Fatal error: Uncaught Error: Class 'League\Event\AbstractEvent' not found in /home/rijschoolmk/xibo.rijschool-mk.be/vendor/league/oauth2-server/src/Event/UserAuthenticationFailedEvent.php:17 Stack trace: #0 {main} thrown in /home/rijschoolmk/xibo.rijschool-mk.be/vendor/league/oauth2-server/src/Event/UserAuthenticationFailedEvent.php on line 17