Transaction start was failed!API CALL<pre>Array
(
    [salt] => ce3a633c332000a255010685238a86e1
    [merchant] => MWS107302
    [orderRef] => 881982525417688677021489
    [currency] => HUF
    [customerEmail] => sdk_test@otpmobil.com
    [language] => HU
    [sdkVersion] => SimplePay_PHP_SDK_2.0.8_190924:f507231ed34d6f3bd175ea7ff08bdcde
    [methods] => Array
        (
            [0] => CARD
        )

    [items] => Array
        (
            [0] => Array
                (
                    [ref] => Product ID 1
                    [title] => Product name 1
                    [description] => Product description 1
                    [amount] => 1
                    [price] => 15
                    [tax] => 0
                )

            [1] => Array
                (
                    [ref] => Product ID 2
                    [title] => Product name 2
                    [description] => Product description 2
                    [amount] => 2
                    [price] => 5
                    [tax] => 0
                )

        )

    [timeout] => 2026-01-20T01:18:22+01:00
    [url] => http://spay.pizzaforte.hu/back.php
)
</pre>API RESULT<pre>Array
(
    [responseBody] => {"errorCodes":[5010],"orderRef":"881982525417688677021489","merchant":"MWS107302","salt":"5Q70YMeJBEqjmJ0afNkKBPJzlKhF4X2V"}
    [responseSignature] => MISSING_HEADER_SIGNATURE
    [responseSignatureValid] => 
    [errorCodes] => Array
        (
            [0] => 5010
        )

    [orderRef] => 881982525417688677021489
    [merchant] => MWS107302
    [salt] => 5Q70YMeJBEqjmJ0afNkKBPJzlKhF4X2V
    [form] => Transaction start was failed!
)
</pre>