我的论坛发主题贴和回复贴都会出现如下错误:

我用的是SS6.0,我的论坛发主题贴和回复贴都会出现如下错误:
Discuz! info: MySQL Query Error

User: admin
Time: 2008-5-11 4:38pm
Script: /bbs/post.php

SQL: INSERT INTO [Table]posts (fid, tid, first, author, authorid, subject, dateline, message, useip, invisible, anonymous, usesig, htmlon, bbcodeoff, smileyoff, parseurloff, attachment)
VALUES ('29', '6151', '0', 'admin', '1', '', '1210495113', '不错呀^', '117.66.177.150', '0', '0', '0', '0', '-1', '-1', '', '0')
Error: Duplicate entry '34952' for key 1
Errno.: 1062

Similar error report has beed dispatched to administrator before.