Fatal error: Uncaught Error: Interface "JMS\Serializer\EventDispatcher\EventDispatcherInterface" not found in /var/www/html/src/vendor/jms/serializer/src/EventDispatcher/EventDispatcher.php:17 Stack trace: #0 {main} thrown in /var/www/html/src/vendor/jms/serializer/src/EventDispatcher/EventDispatcher.php on line 17