Category Archive does not show any recent posts

Navigating through the categories or tags are not displayed posts.

In the blog category displayed some pots, but they are ancient.

You can see the performance here:
http://www.customsolutions.es/5-claves-y-aspectos-importantes-para-enganchar-en-facebook/
In this post, are the categories “Category: BLOG, FACEBOOKPARAEMPRESAS, NEWS. “
Clicking on any of them are empty.

Anyone know how I can solve the problem?

Thanks