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 ')
		AND s.id = m.par_id' at line 8
SELECT s.id AS s_id, s.name AS s_name, date_format(m.date_in, '%d.%m.%Y') as data_in, m.about FROM gm_stenka s, gm_stenka_message m WHERE m.par_id IN () AND s.id = m.par_id
/home/gayly/public_html/gm/board/index.phtml(60)
exception.type=sql.execute
sql /home/gayly/public_html/gm/board/index.phtml(60)
if /home/gayly/public_html/gm/board/index.phtml(35)
leftColumn /home/gayly/public_html/auto.p(951)
body /home/gayly/public_html/auto.p(951)
body /home/gayly/public_html/auto.p(146)
connect /home/gayly/public_html/auto.p(146)
server /home/gayly/public_html/auto.p(946)