Galleries and Portfolios not loading correctly.
Fix: Check the browser for any errors.
403 for the file /wp-
This is likely caused by a security plugin creating a rule to block all .PHP files from executing.
The rule that causes this will likely look something like this:
Deny from all
Add the following code to the .htaccess file in /wp-content/ below the security tool rule.
Order allow, deny
Allow from all
This will allow only guest.vary.php to run and fix the caching issue.