Fatal error: Uncaught Error: Class 'SebastianBergmann\Comparator\ObjectComparator' not found in /home/app/htdocs/message_gateway/vendor/sebastian/comparator/tests/_files/TestClassComparator.php:13 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/sebastian/comparator/tests/_files/TestClassComparator.php on line 13