YouTube channel pages have been down all afternoon

If you’re seeing a 500 internal server error while visiting YouTube today, you’re not alone. The company confirmed via Twitter at 2:27PM ET that channel pages were down, though individual videos could still be watched.
YouTube initially said that the error was only affecting some channels, but it’s since pulled a tweet with that clarification. There don’t seem to be any channels that are still up.
Keep in mind this is only affecting main channel pages. All individual vid