phpnow环境安装好discuz后不能注册用户也不能登录 而且在UCenter的管理页面里的基本设置,注册设置和邮件设置都显示 UCenter info: MySQL Query ErrorSQL:SELECT * FROM [Table]settings WHERE k IN ('doublee','accessemail','censoremail','censorusername','dateformat','timeoffset','timeformat','extra','maildefault','mailsend','mailserver','mailport','mailauth','mailfrom','mailauth_username','mailauth_password','maildelimiter','mailusername','mailsilent','pmcenter','pmlimit1day','pmfloodctrl','sendpmseccode','pmsendregdays')Error:Unknown column 'k' in 'where clause'Errno:1054请教高手这是怎么回事