41557 Adsense Ads No Longer Showing

All at once my adsense ads are no longer showing on my website's. There is nothing where they should be at all. The sites are [login to view URL] (there is a big blank space under the header where they should be) and [login to view URL] (they should be located on the bottom right but they aren't). The ads have just completely disappeared from home page, etc., and they where there and I earned from them earlier today. And my Google Adsense account is fine so that's not the problem.