[Z@Zmaster]

Hello! I have error:

Database error in vBulletin 3.8.*:

Invalid SQL:
SELECT * FROM post_thanks AS post_thanks INNER JOIN user AS user USING (userid) WHERE post_thanks.postid IN () ORDER BY post_thanks.username ASC;

MySQL Error : 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 ') ORDER BY post_thanks.username ASC' at line 1
Error Number : 1064
Request Date : Thursday, February 19th 2015 @ 06:23:48 PM
Error Date : Thursday, February 19th 2015 @ 06:23:48 PM
Script : http://www.*********.ru/post_thanks.php
Referrer : http://www.*********.ru/showthread.php?t=109155
IP Address : ***********
Username : Незарегистрированный
Classname : vB_Database_MySQLi
MySQL Version :

How fix it?