Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::__construct(): Implicitly marking parameter $logger as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php on line 45

Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::__construct(): Implicitly marking parameter $requestStack as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php on line 45

Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::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\Debug\TraceableEventDispatcher.php on line 98

Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::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\Debug\TraceableEventDispatcher.php on line 124

Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::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\Debug\TraceableEventDispatcher.php on line 132

Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::getCalledListeners(): Implicitly marking parameter $request as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php on line 169

Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::getNotCalledListeners(): Implicitly marking parameter $request as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php on line 187

Deprecated: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher::getOrphanedEvents(): Implicitly marking parameter $request as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php on line 230

Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventDispatcherInterface" not found in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php:30 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php on line 30