Fatal error: Uncaught Error: Interface 'League\Event\EmitterInterface' not found in /mnt/volume_lon1_01/backend/admin/vendor/league/event/src/Emitter.php:7
Stack trace:
#0 {main}
thrown in /mnt/volume_lon1_01/backend/admin/vendor/league/event/src/Emitter.php on line 7