请问着是 什么原因哦

Discuz! info: MySQL Query Error

Time: 2005-7-16 4:50pm
Script: /bbs/index.php

SQL: SELECT username,timeoffset FROM cdb_members where username=''
Error: No Database Selected
Errno.: 1046

An error report has been dispatched to our administrator.

Warning: halt(DISCUZ_ROOT./include/db_mysql_error.php): failed to open stream: No such file or directory in /home/freehost/t35.com/s/k/skyo/bbs/include/db_mysql.php on line 121
这是什么意思哦

应该是你安装插件升级数据库时出了问题，好象是在线时间的插件吧？

再重新安装一次试试！