Custom permalink plugin and Polylang

My site uses Custom permalinks plugin and i wan’t to have english version of my site. Some pages from different post types are written in custom permalinks. For ex, i go to such page, add translate, publicate translation. Russian page with Custom permalink has url http://www.mysite/page(instead http://www.mysite/category/page) and i want(i have added setting in Polylang that before ‘page’ added /en/) that translated page has url such http://www.mysite/en/page, i write in admin panel ‘page’ in slug, but when i watch translated page i have redirect http://www.mysite/page on Russian version(though Polylang mast add /en/), i’ve try to write in admin pannel /en/page, but nothing(and in Custom permalink settings page in admin i saw http://www.mysite/en/en/page)…i don’t have any idea, how to resolve this situation, help me please!

https://ww.wp.xz.cn/plugins/polylang/