发生了一个数据库错误

Error Number: 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 ')' at line 5

SELECT COUNT(*) AS `numrows` FROM (`boc_product`) WHERE `cid` = 1 AND `audit` = 1 AND `ctype` IN ()

Filename: /xm-workspace/xm-webs/xiongmai/html/libs/core/MY_Model.php

Line Number: 41