404 Error when crawled by google fetcher, but works fine on a browser

404 Error when crawled by google fetcher, but works fine on a browser

Mediawiki website works fine when working on a web browser but returns a
404 error when crawled by Google fetcher.
The homepage works fine when opened by Google fetcher, it is an index.php
file that redirects to /Learn
However when opening /Learn by Google fetcher, the fetcher returns Not
found due to a 404 error.
I use these rewrite rules to make a short URL and I used this link to
generate it:
RewriteEngine On
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-d
RewriteRule ^(.*)$ %{DOCUMENT_ROOT}/homepage/index.php [L]