Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/helpdatafirst/public_html/helpappold/vendor/symfony/console/EventListener/ErrorListener.php:25 Stack trace: #0 {main} thrown in /home/helpdatafirst/public_html/helpappold/vendor/symfony/console/EventListener/ErrorListener.php on line 25