Enrico Mingardo

Solved:
open qtranslate-slug-with-widget.php, look for the following lines:

function qTranslateSlug_category_link($link, $id){
  //TODO: implement it!
  global $wpdb, $q_config, $qts_use_language, $wp_query;

modify as follows:

function qTranslateSlug_category_link($link, $id){
  //TODO: implement it!
  if ( is_object($id) ) {
	  $id = $id->id;
  }
  global $wpdb, $q_config, $qts_use_language, $wp_query;

now it works

cheers
e.

Yes, I confirm: return to default theme make it works.

I’m having this problem too. Is there a workaround?
Thanks