Fatal error: Uncaught Error: Class 'SebastianBergmann\Diff\InvalidArgumentException' not found in /var/www/app/appregwebservice/vendor/sebastian/diff/src/Exception/ConfigurationException.php:18 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/sebastian/diff/src/Exception/ConfigurationException.php on line 18