Bug in category section

Hello, when i translate all my articles and sections in the “Translate all”, and go to some category section in my blog, it shows a 404 page not found.
My blog is http://www.cssblog.es

If you check this category, in this language:

http://www.cssblog.es/de/categoria/css-avanzado/

It works, but if you check in this language:

http://www.cssblog.es/it/categoria/css-avanzado/

or this:

http://www.cssblog.es/pt/categoria/css-avanzado/

It not work, and it happen in a few categories more, what can i do?

Thanks.

http://ww.wp.xz.cn/extend/plugins/transposh-translation-filter-for-wordpress/