What could be the reasons why .htaccess ignores absolutely all of my commands?

Question

htaccess

Or is there an error in the directives somewhere? I've been messing around for half a day and I can't figure out what's wrong. Maybe it's because the server is on nginx and it doesn't care about the Apache htaccess, although there is supposed to be a module there to translate the .htaccess directives into the nginx language, or do I not understand anything at all? The site is on MODx, and there is an access to MODx Soviet. Maybe he doesn't take directives?
I just broke my head.
Here is the full .htaccess code (already changed):

Options +FollowSymlinks
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.pochin\.ru
RewriteRule ^(.*)$ http://pochin.ru/$1 [R=permanent,L]
RewriteCond %{HTTP_HOST} pochincover.ru
RewriteRule (.*) http://pochin.ru/$1 [R=301,L]

# For full documentation and other suggested options, please see
# http://svn.modxcms.com/docs/display/MODx096/Friendly+URL+Solutions
# including for unexpected logouts in multi-server/cloud environments
# and especially for the first three commented out rules

#php_flag register_globals Off
AddDefaultCharset utf-8
#php_value date.timezone Europe/Moscow

# Fix Apache internal dummy connections from breaking [(site_url)] cache
RewriteCond %{HTTP_USER_AGENT} ^.*internal\ dummy\ connection.*$ [NC]
RewriteRule .* - [F,L]

# Rewrite domain.com -> www.domain.com -- used with SEO Strict URLs plugin
#RewriteCond %{HTTP_HOST} .
#RewriteCond %{HTTP_HOST} !^www\.example\.com [NC]
#RewriteRule (.*) http://www.example.com/$1 [R=301,L]



# Exclude /assets and /manager directories and images from rewrite rules
RewriteRule ^(manager|assets)/*$ - [L]
RewriteRule \.(jpg|jpeg|png|gif|ico)$ - [L]

# For Friendly URLs
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

# Reduce server overhead by enabling output compression if supported.
#php_flag zlib.output_compression On
#php_value zlib.output_compression_level 5

#php_value display_errors On
#AddHandler php-script .php
#Action php-script /cgi-bin/php