Deprecated: Carbon\Exceptions\UnitNotConfiguredException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\nesbot\carbon\src\Carbon\Exceptions\UnitNotConfiguredException.php on line 32

Fatal error: Uncaught Error: Class "Carbon\Exceptions\UnitException" not found in C:\Apache24\htdocs\BookStack\vendor\nesbot\carbon\src\Carbon\Exceptions\UnitNotConfiguredException.php:16 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\nesbot\carbon\src\Carbon\Exceptions\UnitNotConfiguredException.php on line 16