Fatal error: Uncaught Error: Class "Facebook\FileUpload\FacebookFile" not found in /home2/cp334332/public_html/examcenter/vendor/facebook/graph-sdk/src/Facebook/FileUpload/FacebookVideo.php:31 Stack trace: #0 {main} thrown in /home2/cp334332/public_html/examcenter/vendor/facebook/graph-sdk/src/Facebook/FileUpload/FacebookVideo.php on line 31