[HuangA]

You might want to edit warnlog.php around Line 92

	FROM  " . TABLE_PREFIX . "warnlog
 	INNER JOIN " . TABLE_PREFIX . "user ON (warnlog.w_user=user.userid)
 	INNER JOIN " . TABLE_PREFIX . "user ON (warnlog.w_by=user1.userid)
 	LEFT JOIN " . TABLE_PREFIX . "post ON (warnlog.w_post=post.postid)
 	LEFT JOIN " . TABLE_PREFIX . "thread ON (post.threadid=thread.threadid)

and replace with

	FROM  " . TABLE_PREFIX . "warnlog AS warnlog
 	INNER JOIN " . TABLE_PREFIX . "user AS user ON (warnlog.w_user=user.userid)
 	INNER JOIN " . TABLE_PREFIX . "user AS user1 ON (warnlog.w_by=user1.userid)
 	LEFT JOIN " . TABLE_PREFIX . "post AS post ON (warnlog.w_post=post.postid)
 	LEFT JOIN " . TABLE_PREFIX . "thread AS thread ON (post.threadid=thread.threadid)

Missing the AS clauses will cause errors for those that are using tableprefix