radmin viewer:There seems to have been a problem with the database of your Discuz! Board

请问这个错误该怎么修正啊？

There seems to have been a problem with the database of your Discuz! Board

Discuz! info: MySQL Query Error

Time: 2006-7-7 3:50pm
Script: /bbs/register.php

SQL: INSERT INTO cdb_members (username, password, secques, gender, adminid, groupid, regip, regdate, lastvisit, lastactivity, posts, credits, extcredits1, extcredits2, extcredits3, extcredits4, extcredits5, extcredits6, extcredits7, extcredits8, email, bday, sigstatus, tpp, ppp, styleid, dateformat, timeformat, pmsound, showemail, newsletter, invisible, timeoffset)
VALUES ('觅路俗谛', 'e2b4800657d0db75246a8b756b9173b6', '7d5a442e', '0', '0', '10', '222.240.155.130', '1152258627', '1152258627', '1152258627', '0', 0,0,0,0,0,0,0,0,0, 'rqcgvfsy@ikhiq.com', '', '0', '0', '0', '', '', '12', '', '', '1', '0', '+8')
Error: Duplicate entry '' for key 2
Errno.: 1062

Please check-up your MySQL server and forum scripts, similar errors will not be reported again in recent 24 hours
If you have troubles in solving this problem, please visit Discuz! Community http://www.Discuz.net.