I think there are multiple issues here:
1) Because you’re using query_posts() the post object’s query_vars are inherited by your new query_posts(). I suspect then, that 'post_type' => 'persoane' is implicitly part of that query posts call. If you switch to using WP_Query instead of query posts, I suspect that will fix the issue.
2) Have you double checked that get_query_var('term') is returning what you expect? I think that only works on taxonomy archive pages. Instead, you’ll want do use get_the_tags().