Speakers / Artists & DJs

Hi,

I've got the Artists set up so when you click you get here: http://pirineospicnicfestival.es/ppf/?cat=87

That's in Spanish, but when you click it on the english page (http://pirineospicnicfestival.es/ppf/?cat=162&lang=en) or other languages page nothing comes up, it's set to be a duplicate so I don't understand what happening any help would be great Cheers! : D

Is it to do with "category-ID.php" ? Do I need to make a copy of this file and change the 'ID' part to match the category? Im using WPML by the way, cheers!