Deprecated: Psy\Exception\UnexpectedTargetException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\psy\psysh\src\Exception\UnexpectedTargetException.php on line 24

Fatal error: Uncaught Error: Class "Psy\Exception\RuntimeException" not found in C:\Apache24\htdocs\BookStack\vendor\psy\psysh\src\Exception\UnexpectedTargetException.php:14 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\psy\psysh\src\Exception\UnexpectedTargetException.php on line 14