I am getting this Soap Error:

System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.NullReferenceException:
Object reference not set to an instance of an object.
at WSMetalMaker.SetRequestType(String RequestType)
--- End of inner exception stack trace --- on SetRequestType function

I am not sure if is an error of the Webservice or an error of the Soap call.

I am trying to contact the webservice author in order to get more info about it.