Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\ArrayComparator" not found in /home/sta963/public_html/back-end/vendor/sebastian/comparator/src/ObjectComparator.php:21 Stack trace: #0 {main} thrown in /home/sta963/public_html/back-end/vendor/sebastian/comparator/src/ObjectComparator.php on line 21