请问这是什么意思?

SupeSite info: MySQL Query Error

User: admin
Time: 2010-3-16 9:27pm
Script: /admincp.php

SQL: INSERT INTO [Table]spaceitems (`catid`, `subject`, `keyword`, `folder`, `hash`, `picid`, `styletitle`, `digest`, `top`, `allowreply`, `grade`, `haveattach`, `dateline`, `tid`, `type`, `uid`, `username`, `lastpost`, `fromtype`) VALUES ('1', '方法', '', '0', '55fb5708a3af5901', '0', '', '0', '0', '1', '0', '0', '1268746015', '0', 'news', '1', 'admin', '1268746015', 'adminpost')
Error: Unknown column 'folder' in 'field list'
Errno.: 1054


在发布文章点保存的时候出现的.