Loadrunner VUGEN server Response is not coming properly.

Hi,

I am getting below server response whenever runs a perticular function. Due to that not able to proceed further.

Server replay response:

Xhttp://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher/faultD��\+{+HM��:�)9��VV�V�V��s�:�SenderV�V� aRhttp://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher�a�:�DeserializationFailedV�V�xmllang�en-US��The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:objLVProposalDataXml. The InnerException message was 'There was an error deserializing the object of type System.String. '�Y@objLVGeneralServiceAppData b8http://schemas.datacontract.org/2004/07/GeneralServiceBL i)http://ww' contains invalid UTF8 bytes.'. Please see InnerException for more details.

Thanks,

Abhijitk