Thank you for your reply. I had that shortcode on my page before and exactly there, the sign up button didn't work. So I changed it to what you can see now. I made some changes on .htaccess file and you can launch divi builder without any problem now.
Please feel free to make any changes on the staging copy.
Thanks for your quick reply, but the way you said doesn't work. Membership 2 pro has too many bugs with no doubt. I never expect these kinds of plugins from wpmu :(
Please take a look at my open ticket :
Sajid doesn't response anymore. Also there're some other bugs. Sign up button in "account" page doesn't work. Users can't cancel their subscriptions. "Test Membership" do nothing.
Please use credentials I sent to Sajid and work on staging copy of the website.
I hope to hear from you soon.
About #3 I can say most of the categories. Please go to "rice importers database" and click on November 2016 or October 2016 (or other links). You can see many posts here.
Then update the plugin and again go to those categories. In some categories you can see a few posts and in some of them you see "No results found, ..."
Thank you for your help.
I assigned that password once again. You can see admin panel with the username and password I sent before.
I just logged in to the staging website with that user/pass and it works fine.