Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/sourceex/public_html/pm/vendor/symfony/psr-http-message-bridge/EventListener/PsrResponseListener.php:18
Stack trace:
#0 {main}
thrown in /home/sourceex/public_html/pm/vendor/symfony/psr-http-message-bridge/EventListener/PsrResponseListener.php on line 18