Fatal error: Uncaught Error: Interface "JMS\Serializer\EventDispatcher\EventSubscriberInterface" not found in /home/activeexcavators/public_html/vendor/jms/serializer/src/EventDispatcher/Subscriber/SymfonyValidatorValidatorSubscriber.php:12 Stack trace: #0 {main} thrown in /home/activeexcavators/public_html/vendor/jms/serializer/src/EventDispatcher/Subscriber/SymfonyValidatorValidatorSubscriber.php on line 12