Why is repl so slow today?
I've been logging in and it keeps saying Error 500. Should I be worried or am I just an idiot?
Yea, happens some time or another. Pings/comments/replies load super slowly, you get the repl.it spinning icon a lot, sometimes you can't see your repls (can't fetch repls or something like that), and your repls can crash a lot (plugin crash), etc.
Only thing to do is to wait. That's what you have to do. I think it's fixed (for me) now, you could always try to reload the page several times, delete/reopoen page, etc.