cannot type anything on the frontend.

I installed this plugin and i am not able to type anything on the front end. this is only for this plugin. I installed the forum plugin and that works fine.
http://www.thinketc.com/questions/ask/ is the domain if you want to check. please assist.

P.S: I checked and this works fine when I am using twentytwelve theme. My theme is Bretheon which is causing this. Please advise.