Problem with posts and database

Hello,

I have WP multisite with 4 subdomains:
1. website.com/ (website in german)
2. website.com/en (website in english)
3. website.com/ru (website in rusian)
4. website.com/fr (website in french)

One of my admins changed something and since than when I go to dashboard in english version I get german versions (although url is ok – website.com/en). All posts and pages are from german version of the website (website.com/). German version is working just fine, Russian and French to, I just have problems with English version.

I opened my database and I have 4 wp_posts tables:
1. wp_posts
2. wp_2_posts
3. wp_3_posts
4. wp_4_posts

In wp_2_posts I can see correct english posts, but they are missing in my dashboard – and I see articles from wp_posts in my english dashboard.

When I open wp_2_options it’s showing correct siteurl (website.com/en)

My htaccess is:

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ – [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]

Anyone have any idea how to fix this?

Thanks,
Milan