bbPress Edit Post blank

Hi.
I got a bbPress forum up and running and since I switch to the Fruitful theme, users (or admins) can’t edit a topic directly on the forum. All we got is a blank space after the header (logo and site’s main menu).
Can you help me?
I’ve tried switch to the Twenty Twelve Theme and the problem was gone, so I suspect the problem has something to do with the Fruitful theme.
The forum is private, but I’ve created a test user so you can see what’s happening.
https://doiseum.com/trilha/
username: tester
pass: the word “la” three times.

Here’s the direct link to the forum after you login to a topic that I create a test post (lorem ipsun thing) post id: 3108
https://doiseum.com/trilha/forums/topico/duvidas-tecnicas/

Thank you.