"I tried to look up questions about the .htaccess file and okay with the link structure before asking, but I couldn't solve the problem. So, I wanted to share it with you and seek your help."
this is my htaccess file
Options -Indexes
DirectoryIndex index.php
<IfModule mod_rewrite.c>
RewriteEngine On
# Redirect HTTP to HTTPS
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
# Existing rules
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?qa-rewrite=$1 [B,L]
</IfModule>