Fatal error: Uncaught Error: Interface "Microsoft\Kiota\Abstractions\Serialization\AdditionalDataHolder" not found in C:\xampp\htdocs\mflux\vendor\microsoft\microsoft-graph\src\Generated\Solutions\BookingBusinesses\Item\GetStaffAvailability\GetStaffAvailabilityPostRequestBody.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\mflux\vendor\microsoft\microsoft-graph\src\Generated\Solutions\BookingBusinesses\Item\GetStaffAvailability\GetStaffAvailabilityPostRequestBody.php on line 15