@Manaco, are you still unable to get into the game? We're working on a related bug that was causing the play now button not to work, but it seems to only affect some people and not others or maybe it was only happening part of the time. If you're still not able to get in please tell me and we'll see if we can narrow down what's going on.
@mrpeters, sorry about that, we haven't seen that bug before but I'll take a look at it. Do you know what beast you were trying to capture and what level it was? I'm going to see if I can reproduce the problem. (This is Brian from Insomniac btw)