need help figuring out an exception to a soapcall

[tillman.stevens]

at this point, I've authenticated with the login service, and I believe I'm now passing the cookie correctly to the ADBAccess service, but when I do a soapcall to getCMSData, I'm getting an exception.

 

Here's the relevant code:

                $agDataService->__setCookie('cookie', $s_Cookie);

             

                $a_includeList[0]="*";

 

                $a_getCMSTables_args['opName']='accounts';

                $a_getCMSTables_args['startDate']='01/07/2011';

                $a_getCMSTables_args['endDate']='01/08/2011';

                $a_getCMSTables_args['lastID']='';

                $a_getCMSTables_args['includeList']= a_includeList;

 

                $agTables = $agDataService->__soapCall('getCMSData', $a_getCMSTables_args, null, new SoapHeader('http://webservice.agemni.com', 'cookie', $s_Cookie));

 

and here's the exception:

System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.NullReferenceException: Object reference not set to an instance of an object. at ADBAccess.setErrorXML(XmlDocument& responseDoc, XmlElement& DocRoot, String ErrorMessage, Int32 ErrorNum, Int32 numRecords) at ADBAccess.getCMSData(String opName, String startDate, String endDate, String lastID, String[] includeList) --- End of inner exception stack trace ---

 

any ideas?