I am getting Error While Creating Transaction Token

[venku111]

paytmpg\merchant\models\SDKResponse Object ( [responseObject:paytmpg\merchant\models\SDKResponse:private] => paytmpg\pg\response\InitiateTransactionResponse Object ( [head:paytmpg\pg\response\InitiateTransactionResponse:private] => [body:paytmpg\pg\response\InitiateTransactionResponse:private] => paytmpg\pg\response\InitiateTransactionResponseBody Object ( [txnToken:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [isPromoCodeValid:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [subscriptionId:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [isAuthenticated:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [callbackUrl:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [resultInfo:paytmpg\pg\response\BaseResponseBody:private] => paytmpg\pg\response\ResultInfo Object ( [resultStatus] => failure [resultCode] => 501 [resultMsg] => Missing Mandatory Parameters [isRedirect] => ) [extraParamsMap:paytmpg\pg\request\ExtraParameterMap:private] => Array ( ) ) ) [jsonResponse:paytmpg\merchant\models\SDKResponse:private] => )

[kbhnarola]

Response from SDK on calling createTxnTokenwithRequiredParams paytmpg\pg\response\InitiateTransactionResponse Object ( [head:paytmpg\pg\response\InitiateTransactionResponse:private] => [body:paytmpg\pg\response\InitiateTransactionResponse:private] => paytmpg\pg\response\InitiateTransactionResponseBody Object ( [extraParamsMap:paytmpg\pg\request\ExtraParameterMap:private] => Array ( ) [resultInfo:paytmpg\pg\response\BaseResponseBody:private] => paytmpg\pg\response\ResultInfo Object ( [resultStatus] => failure [resultCode] => 501 [resultMsg] => API Communication ErrorCURL Error: [isRedirect] => ) [txnToken:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [isPromoCodeValid:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [subscriptionId:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [isAuthenticated:paytmpg\pg\response\InitiateTransactionResponseBody:private] => [callbackUrl:paytmpg\pg\response\InitiateTransactionResponseBody:private] => ) )

I'm having same issue, is anyone have idea on this?