Using Formidable with Theme--Bootstrap not working

Using formidable with Bootstrap add-in…when I use shortcode in page…link shows up and when I hit…page grays but no form shows. Changed Themes…keeping all plugins and it works fine. Is this a way to fix? Thanks for any help in advance.

You should better contact the theme author for item support

Thought I was…how do you do that?

Check the item page for support contact details