A Database Error Occurred

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 3

SELECT COUNT(*) AS `numrows` FROM `yd_ask` WHERE bestid = 1 AND categoryid IN ()

Filename: D:/wwwroot/ydyy120.com/system/database/DB_driver.php

Line Number: 691