Help: “Category” page is not loading well (Time-out)

Hello all, I tried the search a few times about this problem but couldn´t find anything yet, so I´ll hope someone here knows a little bit more about it.

The problem is that on my blog, there is a page (http://www.macamba.nl/es/) with some links to a catogory (http://wwww.macamba.nl/category/espanol/) and (http://wwww.macamba.nl/category/videos/), when the visitors click on that link, the requested page (Category Archive) doesn´t load. (Maybe you should try the page and you´ll see the problem)

What I would like to know is: Is there something that I can do about this? Is this a wordpress problem, or a database problem? Or what? My host is a paid host, the page is working fine as you could see, but only this nasty detail. Thanks everyone!