Fatal error: Uncaught Error: Interface "League\Event\EmitterAwareInterface" not found in /home/vincent/http/concrete5/concrete/vendor/league/oauth2-server/src/Grant/GrantTypeInterface.php:26 Stack trace: #0 {main} thrown in /home/vincent/http/concrete5/concrete/vendor/league/oauth2-server/src/Grant/GrantTypeInterface.php on line 26