I keep getting 502 Bad Gateway on lemmy.ml

I can see posts from lemmy.ml on lemmy.world. But when I go on lemmy.ml directly, I get 502 Bad Gateway. The pictures on the lemmy.ml posts I see are also missing. Does this happen to anyone else? Or am I doing something wrong?

EDIT: I can now visit lemmy.ml after forcing ipv4. If you also get 502 Bad Gateway, you can try forcing ipv4 or go to other instances like lemmy.world or sopuli.xyz.