Contact form 7 and Internet explorer with DIVI

I have this website made with theme DIVI; new.tv?ttm?starn.se that breaks the site only in Internet Explorer when Contact form 7 is activated. The version of IE I have tested with is 11. Website works just fine in any other browser. The site breaks on frontpage even if there is no contact form on that particular page.

Does anyone have any idea why this happens and if there is a way around it?

Thanks in advance – Lena P

The page I need help with: [log in to see the link]