Fatal error: Uncaught Error: Class "League\Event\AbstractEvent" not found in /home/maborneapp/public_html/dislog/vendor/league/oauth2-server/src/Event/ClientAuthenticationFailedEvent.php:17 Stack trace: #0 {main} thrown in /home/maborneapp/public_html/dislog/vendor/league/oauth2-server/src/Event/ClientAuthenticationFailedEvent.php on line 17