Response error

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
   <SOAP-ENV:Body>
      <ns0:FDCreationRes xmlns:ns0="http://www.bidv.com/entity/vn/account/fdcreation/fdrcreate/1.0">
         <ns1:Header xmlns:ns1="http://www.bidv.com/common/envelope/commonheader/1.0">
            <ns1:Common>
               <ns1:BusinessDomain>FDRCREATE</ns1:BusinessDomain>
               <ns1:ServiceVersion>1.1</ns1:ServiceVersion>
               <ns1:MessageId>Ab123456</ns1:MessageId>
               <ns1:TransactionId>Ab123456</ns1:TransactionId>
               <ns1:MessageTimestamp>2021-10-27T15:20:40</ns1:MessageTimestamp>
            </ns1:Common>
            <ns1:Client>
               <ns1:SourceAppID>STM</ns1:SourceAppID>
            </ns1:Client>
         </ns1:Header>
         <ns1:ResponseStatus xmlns:ns1="http://www.bidv.com/common/envelope/commonheader/1.0">
            <ns1:Status>1</ns1:Status>
            <ns1:GlobalErrorCode>400</ns1:GlobalErrorCode>
            <ns1:GlobalErrorDescription>Error in Backend</ns1:GlobalErrorDescription>
            <ns1:ErrorInfo>
               <ns1:SourceAppID>Core</ns1:SourceAppID>
               <ns1:ErrorCode>100</ns1:ErrorCode>
               <ns1:ErrorDesc>0x40000007 the system has encountered an error while processing your request service message id=0x7f000620: %1={Unexpected element {http://www.fnf.com/xes/bid}:AcctExt} Cause : Unexpected element {http://www.fnf.com/xes/bid}:AcctExt. The error was {1}</ns1:ErrorDesc>
            </ns1:ErrorInfo>
         </ns1:ResponseStatus>
         <ns0:BodyResFDRCreate>
            <ns0:FDRNo/>
         </ns0:BodyResFDRCreate>
      </ns0:FDCreationRes>
   </SOAP-ENV:Body>
</SOAP-ENV:Envelope>