It's very strange you get this error since Dec. 25th, since the last update we released was on Dec. 12th, and we specifically decided to not release *anything* during the holidays, for the precise reason of not being able to do promptly fixes when everybody at FSDT ( not just me, I'm just the one replying here, but FSDT is several people...), and in addition to that, I found myself without internet access, so I had to CUT my already short vacation because of that.
I forced a refresh of some files, try running the Live Update again now.