Fatal error: Uncaught Error: Class "Knp\DoctrineBehaviors\ORM\AbstractSubscriber" not found in C:\xampp\htdocs\electronica\vendor\knplabs\doctrine-behaviors\src\ORM\Sortable\SortableSubscriber.php:27 Stack trace: #0 {main} thrown in C:\xampp\htdocs\electronica\vendor\knplabs\doctrine-behaviors\src\ORM\Sortable\SortableSubscriber.php on line 27