Fatal error: Uncaught Error: Class "Osp\Base\OspStub" not found in C:\xampp\htdocs\updatejd\src\vipapis\puma\ChannelProductSelectionService.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\updatejd\src\vipapis\puma\ChannelProductSelectionService.php on line 21