Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventDispatcherInterface" not found in /home/alkhalaffamily/public_html/educourses/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:30
Stack trace:
#0 {main}
thrown in /home/alkhalaffamily/public_html/educourses/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php on line 30