Could not obtain topic ids

DEBUG MODE

SQL Error : 1064 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 p.topic_id' at line 5

SELECT p.topic_id FROM phpbb_posts p WHERE p.post_id IN (1854277) AND p.forum_id NOT IN (37, 45, 55, 60, 66) GROUP BY p.topic_id GROUP BY p.topic_id

Line : 443
File : /home/passionf/www/forum/search.php