Fatal error: Uncaught Error: Class 'Beta\Microsoft\Graph\Model\MeetingRegistrationBase' not found in /home/outlookforense/public_html/outlook/vendor/microsoft/microsoft-graph/src/Beta/Microsoft/Graph/Model/MeetingRegistration.php:25 Stack trace: #0 {main} thrown in /home/outlookforense/public_html/outlook/vendor/microsoft/microsoft-graph/src/Beta/Microsoft/Graph/Model/MeetingRegistration.php on line 25