DedeCMS Error Warning!

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Error page: /a/plus/erraddsave.php?aid=12219&title=%E4%B8%8A%E6%B5%B7%E8%AD%A6%E7%94%A8%E7%9B%B4%E5%8D%87%E6%9C%BA%E6%8C%82%E5%9B%BD%E6%97%97%E5%B7%A1%E5%B1%95+%E8%80%81%E4%B8%AD%E9%9D%92%E4%B8%89%E4%BB%A3%E6%B8%B8%E5%AE%A2%E5%85%B1%E5%BA%86%E5%8D%81%E4%B8%80
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!