Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Event" not found in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/symfony/event-dispatcher/GenericEvent.php:21
Stack trace:
#0 {main}
thrown in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/symfony/event-dispatcher/GenericEvent.php on line 21