Well, it seems that every page goes in a strange way.
All BP pages redirect to wp-admin, while other components of website redirect to the homepage. For ex. the basket page of WooCommerce.
Could it be .htaccess file or wp.config.php?
.htaccess is this:
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress