I double checked and that admincp file seems to be up to date with whats in the latest zip. Still getting a blank white screen when trying to delete all the definitions. When I resync the cache it just redirects me to the settings page and when I save the settings it redirects me back to settings.

The only thing I can think of is that I have moved my forums to a different host but everything was transferred and continues to work.
When I go to delete all of the definitions in its own window, it says that I saved the display order, which is all 1 for some reason. I actually tried to delete all of them, I never changed their order.