Google Ads Disappeared After 3.0 Update

http://www.lazy-sniper.com/ is my blog URL.

I updated WordPress to 3.0 and everything was fine. Misclicked the same button a few days ago, and since the second update my Google Ads have disappeared. The code is still there, but the ads won’t show. I don’t have a clue what’s caused this or how to fix it, but it’s quite important that I have the ads active. If anybody could please help, I’d really appreciate it.