Fatal error: Uncaught Error: Interface 'League\Event\EmitterAwareInterface' not found in /mnt/volume_lon1_01/backend/admin/vendor/league/oauth2-server/src/AuthorizationServer.php:28 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/league/oauth2-server/src/AuthorizationServer.php on line 28