error 404 nginx

.. when I use a custom URL, if plain (like /?p=123) – its working ok
Site here http://albinamotor.com/

I have make the htaccess with:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^((?!(?:ru|en)).*)$ ru/$1 [L,NC,R]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Have try Qtranslate Slug also – not working
Thx
https://ww.wp.xz.cn/plugins/qtranslate-x/