Getting 403 errors on git pushes and browser

I’ve been logged into all day, mostly looking at activity feeds and reading a few small files. When I tried a git push using https I was greeted with 403 errors. When trying to load in a browser I also get 403 errors.

Why is this happening? How do I fix it?

Getting random 403 errors on the free tier is not a good way to encourage users to pay for service.

Thanks for any help or insight!