Error: unknown colum 'nc.uid' in 'where clause' query:

Here is the error I keep getting.

user warning: Unknown column 'nc.uid' in 'where clause' query: SELECT DISTINCT nc.nid FROM node_comment_statistics nc LEFT JOIN cave_tracker cave_tracker ON cave_tracker.id = nc.nid AND cave_tracker.type = 'node' WHERE (( EXISTS ( SELECT 1 FROM troll_whitelist troll_w WHERE troll_w.net <= cave_tracker.ip AND troll_w.bcast >= cave_tracker.ip) OR NOT EXISTS ( SELECT 1 FROM troll_blacklist troll_b WHERE troll_b.net <= cave_tracker.ip AND troll_b.bcast >= cave_tracker.ip AND NOT (troll_b.net <= -1207386590 AND troll_b.bcast >= -1207386590)) ) AND nc.uid NOT IN (446, 150)) AND ( nc.comment_count > 0 )ORDER BY nc.last_comment_timestamp DESC LIMIT 0, 10 in /home/pwn9/public_html/modules/comment/comment.module on line 313.

maybe is just a setting I haven't setup yet? need any more info?