broken cached google pages

Hello, can somebody advise me what exactly should I put in .htaccess
I checked Experimental: enable 404 fallbacks to use in plugin
but I dont see ErrorDocument 404 in my htaccess, tried to recheked
Save aggregated script/CSS as static files? but nothing happen
also I dont have access to server configuration

My current .htaccess
# BEGIN BlockWPLogin
# END BlockWPLogin
# BEGIN WordPress
# The directives (lines) between “BEGIN WordPress” and “END WordPress” are
# dynamically generated, and should only be modified via WordPress filters.
# Any changes to the directives between these markers will be overwritten.
RewriteCond %{REQUEST_FILENAME} -s
RewriteCond %{HTTP_USER_AGENT} !facebookexternalhit/[0-9]
RewriteCond %{HTTP_USER_AGENT} !Twitterbot/[0-9]
RewriteCond %{HTTP_USER_AGENT} !Googlebot/[0-9]
RewriteRule wp-content/uploads/vj-wp-import-export(\/[A-Za-z0-9_@.\/&+-]+)+\.([A-Za-z0-9_@.\/&+-]+)$ [L]
<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

# SGO Unset Vary
Header unset Vary
# SGO Unset Vary END`