Warning :Hosting on server

Hello All,

I have uploded my site on server .But I have got one warning there for forum, when I click on forum link and it is not displaying forum list last column details.whereas In my localhost I am not getting this warning and forum is also displaying properly from where I have uploaded on server

Warning is -->

"user warning: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT title, created AS time, query: SELECT n.title AS topictitle, r.title AS replytitle, r.time timestamp, r.type AS replytype, n.type AS topictype, n.nid AS topicid, t.tid, r.cid AS cid, r.uid, u.name FROM node AS n INNER JOIN ( (SELECT title, created AS time, nid, uid, type, 'cid' AS cid FROM node ) UNION (SELECT subject, timestamp, nid, uid, 'comment', cid FROM comments WHERE comments.status = 0 ) in /mysite.com/drupal/includes/database.mysql.inc on line 172"

Your help is needed.