Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\Comparator" not found in /home/alkhalaffamily/public_html/educourses/vendor/sebastian/comparator/src/SplObjectStorageComparator.php:17 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/educourses/vendor/sebastian/comparator/src/SplObjectStorageComparator.php on line 17