WUU Won't Start

[NimbleRabit]

A month or so ago (maybe only a few weeks) I installed WUU for the first time, since WAU is gone, and set up all my addons in it. It was updating and working just great, and then when I came back to WoW yesterday and tried to open WUU.exe it didn't work. My computer loads for a bit and then stops, and nothing happens. I can't find a WUU in my processes list and obviously nothing pops up.

Anybody have any idea what I did to mess this up (yes I've tried redownloading multiple times) and how I can fix it? Thanks.