SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: SELECT boardid, title FROM bb2_boards WHERE boardid IN ()
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 ')' at line 1
mysql error number: 1064
mysql version: 5.0.51a-3ubuntu5.7-log
php version: 5.2.12-nmm2
Date: 07.09.2010 @ 03:20
Script: /wbb2/print.php?threadid=50&page=1
Referer: