SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Invalid SQL: SELECT COUNT(postid) AS postcount FROM bb279_posts WHERE posttime BETWEEN 1408399200 AND 1408485600
mysql error: Unknown column 'postid' in 'field list'
mysql error number: 1054
Date: 20.08.2014 @ 06:50
Script: /wbb14/279/calender.php
Referer: