Thank your for the answer. Here you are: http://goo.gl/k6xtF
@esemi: That does not help in every case, it depends on the hosing agency
With a modern hosting package with e.g. 128 MB Memory Usage. Please ask your hoster.
Correct it is <div class=”home blog”> and it should be in the header.php
It can also be a problem with your hoster. I had the same problem with an old 1&1-hosting-package with only 32MB Memory. With many plugins some day there was the same problem.
By the way: your website ist with 773kB a little heavy and slow.
Do you have still the mistake, when you deactivate “fancy-box”?