PM Form configuration page error

Since latest update of joomla 3.5.1, cannot go to pm form configuration tab. It takes me to root of website while logged into administrator. Cannot figure out what the problem is. As far as payments going through, it seems to be working properly.

Any ideas?

I'm also on the latest 3.5.1 and editing forms (if that's what you are implying to) works fine after update.

Hi Kevin

I guess there is something special on your site causing the issue. Please submit a support ticket sending us super admin account of your site

We are going to check to see what's wrong and get it sorted for you

Tuan