No idea, working here tho. Have you tried following the instructions tho? (and clear cache, etc)… if still not working for you would suggest you file a bug report (see here)
For now, at least, this is an unofficial forum for Zombies Online. We encourage players to talk about the game, strategize, and rant as much as they like.
At the same time, you should know that (at least for now!) the game’s developers are not monitoring this forum. If you need their help or find a bug, you should go to their official forum: http://forum.gunshine.net.
Have fun!
But it looks like their forum is down judging by the errors I’m getting.