I have had the general error problem too, but right now can't even get into the game. The login recognizes me when I say I am already registered, and takes me to the home page with my name, but when I press the "Play Now" button, it says "Uplay is not currently available. Please wait a few minutes and try again." Multiple days this has been going on. No idea what to do. I tried starting from scratch logging in, but makes no difference.