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