DedeCMS Error Warning!

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Error page: /a/plus/erraddsave.php?aid=16316&title=%E7%BE%8E%E7%A7%B0%E4%B8%AD%E5%9B%BD%E5%86%9B%E7%94%A8%E7%9B%B4%E5%8D%87%E4%BB%85%E6%9C%BA%E5%8D%A0%E4%B8%96%E7%95%8C%E4%BB%BD%E9%A2%9D4%25+%E4%B8%8D%E8%B6%B3%E7%BE%8E1%E6%88%90
Error infos: DedeCms错误警告:连接数据库失败,可能数据库密码不对或数据库服务器出错!