Deprecated: SebastianBergmann\Diff\ConfigurationException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in /home/prooyavi/laravel/laravel/vendor/sebastian/diff/src/Exception/ConfigurationException.php on line 25

Fatal error: Uncaught Error: Class "SebastianBergmann\Diff\InvalidArgumentException" not found in /home/prooyavi/laravel/laravel/vendor/sebastian/diff/src/Exception/ConfigurationException.php:18 Stack trace: #0 {main} thrown in /home/prooyavi/laravel/laravel/vendor/sebastian/diff/src/Exception/ConfigurationException.php on line 18