Citrus save card

Citrus save card

 this is saved my card
 
 private void savePaymentOption(PaymentOption paymentOption) {
        citrusClient.savePaymentOption(paymentOption, new Callback<CitrusResponse>() {
            @Override
            public void success(CitrusResponse citrusResponse) {
                // ((UIActivity) getActivity()).showSnackBar(citrusResponse.getMessage());
                Log.w("saved card1==", citrusResponse.getMessage());
            }

            @Override
            public void error(CitrusError error) {
                Log.w("saved card2==", error.getMessage());
                // ((UIActivity) getActivity()).showSnackBar(error.getMessage());
            }
        });
    }
    
    
    
    the error is-- Have you Signed In? Token not found!!!