Howdy folks, Cody here.
In the last few hours we had some hardware problems on our Lorenzo server and I'm sorry to inform you that the games that were running at the time got lost.
Due to the fact that this was a destructive and unscheduled arrest, those of you who were involved in games might find that the Steam notifications for those games are still present. I'm working on a fix for it, server side.
Sorry for the inconvenience, have a nice day!
Cody