Fatal error: Uncaught Error: Interface 'JMS\Serializer\Handler\SubscribingHandlerInterface' not found in /home/lafaamicps/www/symfony/vendor/jms/serializer/src/JMS/Serializer/Handler/ArrayCollectionHandler.php:28 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/jms/serializer/src/JMS/Serializer/Handler/ArrayCollectionHandler.php on line 28