The package works in sandbox mode, but does not work in production mode

[HamzaMihfad]

my code:

 await ycPay.payWithCard(
        token: token,
        cardInformation: cardInformation,
        onSuccessfulPayment: (transactionId) {
          onPaymentCompleted(transactionId);
        },
        onFailedPayment: (errorMessage) {
          print(errorMessage);
        },
      );

The error: InvalidResponseException: Error occurred while decoding data
Status code: 422
Response: The payment method field is required.

Solution:
you should add the payment method field in request body like this:
"payment_method[type]": "credit_card"