Page Theme with categories

Firstly thank you very much for this wonderful plugin.
The plugin works perfectly when viewed post and pages
But when I try to view post grouped into categories, always look the same issue with the default theme.

For example:
http://www.XXXX.com/category/travel/
http://www.XXXX.com/category/travel/page/2/ http://www.XXXX.com/category/travel/page/3/

Real example

http://www.trenak.com/2014/11/20/puente/ Perfect!! Uses Theme-2

http://www.trenak.com/categoria/diccionario/

The same post but here seen from categories and use the Theme-3 which is the default Theme.

Is this normal?

Anyway thank you very much for this great post.

https://ww.wp.xz.cn/plugins/page-theme/