Unable to connect data in server to android

Hi all,

I have been unable to download questionnaire from server to android, android
cannot connect to server, though it's connecting to sample questionnaires,
on http://opendatakit.appspot.com, what i did was to change this name to my
server name which is not connecting and the error am getting is " Error
getting from list, form listing failed. Document Builder Gactory error:
Unexpected end of document. http://opendatakit.appspot.com/

Kindly assist.

Peter Kaiga,
kaigapeter@gmail.com; peter.kaiga@equitybank.co.ke; kaigapeter@yahoo.com