Polylang removing css from menu (DIVI)

Hi,

I have an isse with my beta site, I want to translate simillar site to 2 languages using Polylang.
When I activate the plugin menu crashes, I belive it’s caused because classes vanish from the header menu when using Polylang.

Tried to fix this on my own but found no success.
Than you in advance.

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