Fatal error: Uncaught Error: Class "Osp\Protocol\JSON\BaseContext" not found in C:\xampp\htdocs\updatejd\src\Osp\Protocol\JSON\OSPPairContext.php:28 Stack trace: #0 {main} thrown in C:\xampp\htdocs\updatejd\src\Osp\Protocol\JSON\OSPPairContext.php on line 28