1.3.9 installation bug - can't access ANY Yootheme Pro settings after upgrade
I just updated Yootheme Pro from 1.3.8 to 1.3.9, and I can no longer access Yootheme Pro. The theme is still working in the preview window, and the Page Builder links still exist on the backend Page options, but when I attempt to edit a page and go into the Page Builder, I'm met with the default Wordpress options with no Yootheme Pro options available. Screenshot: http://imgur.com/pY8Aiw0
This feels like a cache problem, but since I can't access the "clear cache" feature in Yootheme Pro, I don't know what to do. Is there a way to manually remove cached files via FTP? Is it as simple as deleting everything in a particular folder?
Versions: Wordpress 4.7.2 / Yootheme Pro 1.3.9