Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/custom/public_html/katiekarr/vendor/symfony/http-kernel/EventListener/ErrorListener.php:31
Stack trace:
#0 {main}
thrown in /home/custom/public_html/katiekarr/vendor/symfony/http-kernel/EventListener/ErrorListener.php on line 31