unable to see git gui page

Hi all,
I have install git-source-control to the namespace TEST. Also it is working fine as I am able to add files to my local git repo and see the changes in it.
But while I try to open GUI for the same i am getting service unable error on this URL 

http://127.0.0.1:52773/isc/studio/usertemplates/gitsourcecontrol/gitpro…

what's wrong with this.