I get a 500 internal server error for pretty much anything I do. Importing a style, deleting a style, switching to a different style, disabling or enabling an add on, uninstalling an addon, trying to rebuild caches, trying to rebuild core master data, etc ,etc. Usually if I go back and refresh it appears the style was installed,changed, or the addon was disabled. Right now i've got tag me, xenporta, and user rank ribbons installed, and there all disabled but xenporta. I'm on xenforo 1.2.1.