Problem with Polylang

Translate from Russian to English was stopped on the home page after using this theme. I use WordPress to 4.5 and plugin Polylang the last version. Main page: http://soundaround.me Translated page: http://en.soundaround.me Disabling of all plugins doesn't helps. With standard theme Twenty Sixteen everything works well. The problem is in "Clean Box", but I don't know where. My home page with translation looks 404-page.