Unhandled Exception (Debug)

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 ')
	GROUP BY
		parentID
	ORDER BY
		q DESC' at line 7
SELECT parentID, count(*) AS q FROM dating_news WHERE parentID IN () GROUP BY parentID ORDER BY q DESC
/home/gayly/public_html/blogs/comment.phtml(20)
exception.type=sql.execute
sql /home/gayly/public_html/blogs/comment.phtml(20)
qComments /home/gayly/public_html/blogs/comment.phtml(20)
inside /home/gayly/public_html/dating/auto.p(976)
body /home/gayly/public_html/dating/auto.p(976)
body /home/gayly/public_html/dating/auto.p(146)
connect /home/gayly/public_html/dating/auto.p(146)
server /home/gayly/public_html/dating/auto.p(971)