Hi,
I had a similar problem, however I just wanted to add a forum page somewhere to my website (one of the last menu options, if that makes sense). I couldn’t get it to install, and don’t know why.
If anyone could please have a look at my site and figure out why, I would really appreciated it – http://www.iceblast.com.au
I’m using WP version 4.2.2 (I think), and a responsive theme.
Thanks,
Lucy