Fatal error: Uncaught Error: Class "JMS\Serializer\EventDispatcher\EventDispatcher" not found in /var/www/html/src/vendor/jms/serializer/src/EventDispatcher/LazyEventDispatcher.php:11 Stack trace: #0 {main} thrown in /var/www/html/src/vendor/jms/serializer/src/EventDispatcher/LazyEventDispatcher.php on line 11