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WordPress Multisite’s in subdirectory not redirecting to dashboard settings

I’m not certain what’s occurred however our WordPress multisite that is been in a subdirectory for the longest time now refuses to redirect to the WPMS dashboard pages. Settings, themes, plugins and many others.

All of the dashboard settings go to "Sorry! That page doesn’t seem to exist." web page.
This is what we now have tried.

That is my htacess recordsdata

 <IfModule mod_rewrite.c>
 RewriteEngine On
 RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
 RewriteBase /
 RewriteRule ^index.php$ - [L]
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
 RewriteRule . /index.php [L]
 </IfModule>

Recognize any perception?