Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Event' not found in /home/admin2bannerworl/public_html/admin2.bannerworld.co.uk/vendor-old/symfony/event-dispatcher/LegacyEventProxy.php:20 Stack trace: #0 {main} thrown in /home/admin2bannerworl/public_html/admin2.bannerworld.co.uk/vendor-old/symfony/event-dispatcher/LegacyEventProxy.php on line 20