SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Invalid SQL: SELECT COUNT(postid) AS postcount FROM bb279_posts WHERE posttime BETWEEN 1406757600 AND 1406844000
mysql error: Unknown column 'postid' in 'field list'
mysql error number: 1054
Date: 01.08.2014 @ 01:40
Script: /wbb14/279/register.php
Referer: