Can't navigate to created pages in WordPress?

Question

htaccess

Good afternoon! Please tell me, the situation is as follows:
There was a website on WordPress, I needed an English version, I took the site and copied it to the folder namesite.ru/en. But the created pages are no longer visible on the new site. The main page works as it should, but when you go to other pages, it says: page not found. Everything is displayed in the admin panel, all links to pages with the en/ subdirectory, everything is as it should be, I click "go" - the page was not found. What can be wrong? .htaccess is standard WordPress.
upd: Now I checked on the records - everything is fine with them, it goes as it should. It turns out the problem is only with the pages.

Answer 1

Understood. You need to add the name of the subdirectory to .htaccess.
if it was originally

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

what needs to be done

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /en/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /en/index.php [L]
</IfModule>

# END WordPress

Answer 2

need english version

There are multilingual plugins for this.
But to do so - to have problems.
If you really want another site, you create a subdomain OUTSIDE the main directory.
And the site is not only files, but also a base. Naturally, you need to edit the configs, but did not copy everything.