Fatal error: Uncaught Error: Class 'net\authorize\api\contract\v1\ANetApiResponseType' not found in C:\xampp\htdocs\includes\payments\authorize.net\lib\net\authorize\api\contract\v1\AuthenticateTestResponse.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\includes\payments\authorize.net\lib\net\authorize\api\contract\v1\AuthenticateTestResponse.php on line 15