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 parent_id = 0' at line 1

SELECT * FROM forum_posts WHERE topic_id =  and parent_id = 0<div class='frm err'>
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<p>[error string missing]</p>
<p>SELECT * FROM forum_posts WHERE topic_id =  AND parent_id =  LIMIT 0, 15</p>
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