Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventDispatcherInterface" not found in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/symfony/event-dispatcher/EventDispatcher.php:32
Stack trace:
#0 {main}
thrown in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/symfony/event-dispatcher/EventDispatcher.php on line 32