Fatal error: Uncaught Error: Interface "Symfony\Component\Scheduler\Trigger\StatefulTriggerInterface" not found in /home/daysdej/prep-oli-in/vendor/symfony/scheduler/Trigger/PeriodicalTrigger.php:16 Stack trace: #0 {main} thrown in /home/daysdej/prep-oli-in/vendor/symfony/scheduler/Trigger/PeriodicalTrigger.php on line 16