Fatal error: Uncaught Error: Class "SebastianBergmann\Diff\InvalidArgumentException" not found in /var/www/html/_old/server/vendor/sebastian/diff/src/Exception/ConfigurationException.php:13 Stack trace: #0 {main} thrown in /var/www/html/_old/server/vendor/sebastian/diff/src/Exception/ConfigurationException.php on line 13