用了推广中心为什么会出现这样的问题

Discuz! info: MySQL Query Error

User: Administrator
Time: 2009-10-25 4:11pm
Script: /plugin.php

SQL:
SELECT x.*,m.posts,total as oltime,m.username,m.extcredits,m.extcredits
FROM `[Table]yxftuiguang` x
LEFT join `[Table]members` m on x.nuid=m.uid
LEFT JOIN `[Table]onlinetime` o on o.uid=x.nuid
WHERE x.`ruid` =1
order by x.dateline desc
LIMIT 0 , 10
Error: Unknown column 'm.extcredits' in 'field list'
Errno.: 1054

到 http://faq.comsenz.com/ 搜索此错误的解决方案

要怎么解决 【插件 ： 推广中心】