Discuz!6的安装完成后论坛出错问题（老渔翁提问）

安装过程一路绿灯，但进入论坛时提示以下出错信息，请帮助看看是什么原因：

Discuz! info: MySQL Query Error
Time: 2007-12-26 12:22am
Script: /index.php
SQL: REPLACE INTO [Table]caches (cachename, type, dateline, data) VALUES ('settings', '1', '1198599750', '$_DCACHE[''settings''] = array (
''accessemail'' => '''',
''adminipaccess'' => '''',
''allowcsscache'' => ''1'',
''archiverstatus'' => ''1'',
''attachbanperiods'' => '''',
''attachimgpost'' => ''1'',
''attachrefcheck'' => '''',
''attachsave'' => ''0'',
''authkey'' => ''Jj6oG4vqCWLI4NJ'',
''avatarshowdefault'' => ''0'',
''avatarshowheight'' => ''200'',
''avatarshowlink'' => ''1'',
''avatarshowpos'' => ''3'',
''avatarshowstatus'' => ''1'',
''avatarshowwidth'' => ''135'',
''bannedmessages'' => ''1'',
''bbclosed'' => ''0'',
''bbinsert'' => ''1'',

同样的服务器环境，安装5版本正常，而且能正常使用。