"incompatible version"

I was in the process of playing this morning. I go back to the pc and I am disconnected. I try to reconnect and an error message appears: “incompatible version” ? What’s happened? (do not tell me “you do not have the correct version”)

I cant update too, should be great if we have how manually update our game)

server admin seems like hosting with cracked server file

What normally works for me, is restarting Steam.
If there’s an update, it’ll automaticly update when I’m logging into steam again.