Deprecated: Symfony\Component\HttpKernel\EventListener\ErrorListener::__construct(): Implicitly marking parameter $logger as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\http-kernel\EventListener\ErrorListener.php on line 44

Deprecated: Symfony\Component\HttpKernel\EventListener\ErrorListener::logException(): Implicitly marking parameter $logLevel as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\http-kernel\EventListener\ErrorListener.php on line 158

Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\Apache24\htdocs\BookStack\vendor\symfony\http-kernel\EventListener\ErrorListener.php:31 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\symfony\http-kernel\EventListener\ErrorListener.php on line 31