Compatibility with Polylang plugin

Hello, I′d like to ask for help with Polylang integration. Is there any way to make the template see the native WP menu and place it to header template? The polylang plugin needs a separate menu for each language version of a site. I have set it on this web, but the template does not recognize it. Any help is appreciated. Thank you.

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