Deprecated: Symfony\Component\EventDispatcher\EventDispatcher::dispatch(): Implicitly marking parameter $eventName as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\EventDispatcher.php on line 48

Deprecated: Symfony\Component\EventDispatcher\EventDispatcher::getListeners(): Implicitly marking parameter $eventName as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\EventDispatcher.php on line 68

Deprecated: Symfony\Component\EventDispatcher\EventDispatcher::hasListeners(): Implicitly marking parameter $eventName as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\EventDispatcher.php on line 123

Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventDispatcherInterface" not found in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\EventDispatcher.php:32 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\EventDispatcher.php on line 32