纵横搜索无法搜索帖子，其他可以正常使用

我的纵横搜索门户文章、用户等都能正常使用，但是搜索帖子会提示：
您的网络好像有问题！

（网络错误）

不知道什么原因，求高手帮忙解决
不知道是不是解析IP的事儿？
站点：http://www.022sy.com

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