Payex付款集成最终付款页面错误

Question

我已经整合了Payex，最终页面返回了附加的错误：

/PayexExampleCode/MPFinalize.php

SimpleXMLElement Object
(
    [header] => SimpleXMLElement Object
        (
            [@attributes] => Array
                (
                    [name] => Payex Header v1.0
                )

            [id] => 2dd334b571cb4e809a5d13c3bc7a51dd
            [date] => 2018-04-09 05:53:28
        )

    [status] => SimpleXMLElement Object
        (
            [code] => Access_MissingAccessProperties
            [errorCode] => Access_MissingAccessProperties
            [description] => Merchant does not have access to the method.
            [paramName] => SimpleXMLElement Object()

            [thirdPartyError] => SimpleXMLElement Object()

        )

)