Here are the steps to fix .htaccess file issues in WordPress:
1. Login to your WordPress site’s server via FTP or cPanel File Manager.
2. Navigate to the root directory where WordPress is installed.
3. Look for the .htaccess file in the root directory.
4. Download a backup of the .htaccess file to your computer.
5. Rename the .htaccess file to something else (e.g. htaccess\_old).
6. Go to WordPress Admin Dashboard -> Settings -> Permalinks.
7. Without changing anything, click the “Save Changes” button to generate a new .htaccess file.
8. Check to see if the site works correctly. If not, repeat steps 4-7 and try different permalink settings until the site works properly.
9. If the site works correctly, delete the old .htaccess file (htaccess\_old) from the server.
Note: If you have any custom rules in the .htaccess file, make sure to add them back in the new file.
