Cannot Access SETTINGS in Gallery config

[whitneyartist]

I keep getting a 403 error every time I try to access the Settings options in the Gallery Config.
Using GalleryPro 4.

This happened after updating today to v4.
What should I do to solve this?
Thanks
Terry

[SMFHacks]

First check your file permissions for your Sources/Gallery.php file and Admin.php, Subs.php

What SMF Version?

And can you access the gallery not in the admin area?