проблема интеграции сеанса, размещенного на mastercard

Мой код javascript

<script src="https://network.gateway.mastercard.com/form/version/51/merchant/
**<testmerchantID>**/session.js"></script>
<script>
    if (self === top) {
    var antiClickjack = document.getElementById("antiClickjack");
    antiClickjack.parentNode.removeChild(antiClickjack);
} else {
    top.location = self.location;
}

PaymentSession.configure({
    fields: {
        // ATTACH HOSTED FIELDS TO YOUR PAYMENT PAGE FOR A CREDIT CARD
        card: {
            number: "#card-number",
            securityCode: "#security-code",
            expiryMonth: "#expiry-month",
            expiryYear: "#expiry-year"
        }
    },
    session: 'abc456',
    //SPECIFY YOUR MITIGATION OPTION HERE
    frameEmbeddingMitigation: ["javascript"],
    callbacks: {
        initialized: function(response) {
            //console.log(response.status); 
        },
        formSessionUpdate: function(response) {
            // HANDLE RESPONSE FOR UPDATE SESSION
            if (response.status) {
                if ("ok" == response.status) {
                    console.log("Session updated with data: " + response.session.id);

                    //check if the security code was provided by the user
                    if (response.sourceOfFunds.provided.card.securityCode) {
                        console.log("Security code was provided.");
                    }

                    //check if the user entered a Mastercard credit card
                    if (response.sourceOfFunds.provided.card.scheme == 'MASTERCARD') {
                        console.log("The user entered a Mastercard credit card.")
                    }
                } else if ("fields_in_error" == response.status)  {

                    console.log("Session update failed with field errors.");
                    if (response.errors.cardNumber) {
                        console.log("Card number invalid or missing.");
                    }
                    if (response.errors.expiryYear) {
                        console.log("Expiry year invalid or missing.");
                    }
                    if (response.errors.expiryMonth) {
                        console.log("Expiry month invalid or missing.");
                    }
                    if (response.errors.securityCode) {
                        console.log("Security code invalid.");
                    }
                } else if ("request_timeout" == response.status)  {
                    console.log("Session update failed with request timeout: " + response.errors.message);
                } else if ("system_error" == response.status)  {
                    console.log("Session update failed with system error: " + response.errors.message);
                }
            } else {
                console.log("Session update failed: " + response);
            }
        }
    },
    interaction: {
        displayControl: {
            formatCard: "EMBOSSED",
            invalidFieldCharacters: "REJECT"
        }
    },
    order: {
        amount: 10.00,
        currency: "AED" ,
        id:123
    }
  });

function pay() {
    // UPDATE THE SESSION WITH THE INPUT FROM HOSTED FIELDS
    PaymentSession.updateSessionFromForm('card');
}
</script>

Я использовал параметр сеанс: 'фиктивные данные' внутри параметра конфигурации, так как мне нужно идентифицировать каждую транзакцию. Это дает мне ошибку

Session update failed with system error: Form Session not found or expired.

Когда я комментирую эту строку, я получаю в ответе sessionID, созданный библиотекой. Я не понимаю, как идентифицировать каждую транзакцию. Пожалуйста, помогите мне