Fatal error: Uncaught Error: Interface "Microsoft\Kiota\Abstractions\Serialization\AdditionalDataHolder" not found in /var/www/usonboard.com/vendor/microsoft/microsoft-graph/src/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostResponse.php:13 Stack trace: #0 {main} thrown in /var/www/usonboard.com/vendor/microsoft/microsoft-graph/src/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostResponse.php on line 13