Fatal error: Uncaught Error: Interface "Doctrine\ORM\Cache\Persister\Collection\CachedCollectionPersister" not found in /home/iotechtniu/ioacademy/vendor/doctrine/orm/lib/Doctrine/ORM/Cache/Persister/Collection/AbstractCollectionPersister.php:27 Stack trace: #0 {main} thrown in /home/iotechtniu/ioacademy/vendor/doctrine/orm/lib/Doctrine/ORM/Cache/Persister/Collection/AbstractCollectionPersister.php on line 27