Deprecated: Symfony\Component\Mailer\EventListener\EnvelopeListener::__construct(): Implicitly marking parameter $sender as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\ssddanbrown\symfony-mailer\EventListener\EnvelopeListener.php on line 36

Deprecated: Symfony\Component\Mailer\EventListener\EnvelopeListener::__construct(): Implicitly marking parameter $recipients as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\ssddanbrown\symfony-mailer\EventListener\EnvelopeListener.php on line 36

Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\Apache24\htdocs\BookStack\vendor\ssddanbrown\symfony-mailer\EventListener\EnvelopeListener.php:24 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\ssddanbrown\symfony-mailer\EventListener\EnvelopeListener.php on line 24