It's probably because you're on lemmy.world and they're getting hammered under the new load from all the new users. I have a second account there that I signed up when my instance was going down constantly. They've since upgraded and everything loads fine but when I go back to lemmy.world I get constant errors when voting, submitting, or even just loading content.

If you're not too attached to your account yet, try signing up a new account on a new instance, or just wait and I'm sure they'll get it all sorted!

[–] lordxakio@lemmy.world 2 points 1 year ago

I did try another login and it worked! I am not attached at all. I usually only surf All and rarely comment on things anymore.