You're on Lemmy.ml which has been repeatedly overwhelmed by the "hug of death" from Reddit. I'm on Lemmy.World which is also overwhelmed sometimes, but the host just doubled the server power. I think Lemmy.ml is at the maximum power and is looking to migrate to a more powerful server.

I'm personally signed up here and on a couple others as alts, it's nice because I've seen each (lemmy.ml, lemmy.world, and beehaw.org) go down with the hug of death.