Blank screen of Client user (un able to see client although able to do chatting)

I have Install Openfire 3.9.2 on my Server,but as the document for Installing 3.9.1 says Change the config.js file and have done in 3.9.1 and it work but now I am Trying to Do the same With 3.9.2 but was not able to find the Config file in the Pluging, and now when i connect 2 or 3 user i am not able to see the other user,what i can see is their nick name and blankscreen but i am able to do chatting with the User’s,

Please help me out what to do to resolve this issue