I tried reloading UI, uninstalling and reinstalling, and nothing, I asked for help from someone who knew about WA and they didn't have any clue either. I tried registering on other sites like WoWAce and Curse, but it's not letting me register. It keeps saying that email is already registered, even though I've never had an account on those sites.
So I'm gonna see if anyone on here knows how the hell to fix this problem
Use "Weakauras 2". The original weakauras author has been MIA for over 2 years now, but he was still getting paid from curse.com and whatnot, so the maintainers forked it. The old weakauras isn't going to be maintained. WA2 is a drop-in upgrade, you don't need to do anything.