@RebeccaPawn @Xykko @slowcooker Yes, from what I've seen looking at other people's posts, there seems to have been some sort of crash on the Lichess server yesterday, I think that's what caused all the trouble.
Hopefully the Lichess Team can find a way to reverse the damage, but if they can't, then I guess we should move on. A bit of rating doesn't matter so much :)