beta2升级出错，home/update.php?step=data&op=usergroup

请高手看看是咋回事？

具体的错误提示发上来，我看下

MySQL Error
Message: MySQL Query Error
SQL: UPDATE uchome_usergroup SET explower=creditlower, allowmagic=allowblog, allowpoll=allowblog, allowevent=allowblog, allowtopic=manageconfig, allowstat=manageconfig, spamignore=manageblog, managepoll=manageblog, manageevent=manageblog, manageeventclass=manageconfig, managemagic=manageconfig, managemagiclog=manageconfig, managetopic=manageconfig, managespacegroup=manageconfig, managespaceinfo=manageconfig, managespacecredit=manageconfig, managespacenote=manageconfig, manageip=manageconfig, managehotuser=manageconfig, videophotoignore=manageconfig, searchignore=manageconfig, allowpm=allowblog, allowclick=allowblog, allowviewvideopic=manageblog, allowmyop=allowblog, managebatch=manageblog, managedefaultuser=manageconfig, manageclick=manageconfig, managedelspace=manageconfig, managevideophoto=manageconfig, managelog=manageconfig
Error: Unknown column 'creditlower' in 'field list'
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参考https://discuz.dismall.com/viewthread.php?tid=1357575