Fatal error: Uncaught Error: Class "SebastianBergmann\Diff\InvalidArgumentException" not found in /home/v2appclykk/public_html/routing_management/vendor_old/sebastian/diff/src/Exception/ConfigurationException.php:18 Stack trace: #0 {main} thrown in /home/v2appclykk/public_html/routing_management/vendor_old/sebastian/diff/src/Exception/ConfigurationException.php on line 18