Errors when user other than admin tries to tag

Hi,

Having a problem that only showed up for user other than admin. User has tagging but not admin privaleges.

user warning: Unknown column 'n.nid' in 'on clause' query: SELECT v.tags,v.help, v.required, v.weight, u.label_profile name, u.rid, u.vid FROM dru_vocabulary v INNER JOIN dru_user_tags_vocabulary u ON v.vid = u.vid INNER JOIN dru_node_access na ON na.nid = n.nid WHERE (na.grant_view >= 1 AND ((na.gid = 0 AND na.realm = 'all') OR (na.gid = 0 AND na.realm = 'og_public') OR (na.gid = 1129 AND na.realm = 'og_subscriber') OR (na.gid = 116 AND na.realm = 'og_subscriber') OR (na.gid = 173 AND na.realm = 'og_subscriber') OR (na.gid = 84 AND na.realm = 'og_subscriber') OR (na.gid = 232 AND na.realm = 'og_subscriber') OR (na.gid = 90 AND na.realm = 'og_subscriber'))) ORDER BY u.label_weight in /home/groupsal/public_html/includes/database.mysql.inc on line 172.

any ideas what this is about?

Thanks