Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\ObjectComparator" not found in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/sebastian/comparator/src/MockObjectComparator.php:17 Stack trace: #0 {main} thrown in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/sebastian/comparator/src/MockObjectComparator.php on line 17