What do I do if my home page will not load?

So, on Khan academy, I have been trying to complete my lessons, but  I just see this message:

"Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us."

I always  refresh, but it never works, so I haven't used Khan Academy for quite a while.

Thank you for your help

- winston?(❁´◡`❁)