Wordpress 沒有文章符合您的搜索條件 "sorry no post match your criteria"

Last time I've writing a new post,
and it saved draft automatically,
when I leave for a while and came back,
It's a little weird? But i forgot what happened.
so I just reload the page, Then It crashed Orz.

It shows "sorry no post match your criteria" on my index page.
I've changed The version of wordpress,and closed some plugins which i guess may cause this.
Finally, I've tried a dummy action, and it's works!
Solution
Just try login in by administrator, and post a new post.
Maybe It's works=.=

上次在貼新文章的時候，剛好有事離開了一下，
回來的時候就有點怪怪的，重新整理以後就整個網誌都炸了，
最大的問題是首頁不會出現任何文章，只有出現"沒有文章符合您的搜索條件"的字樣，
單獨進入每篇文章的連結都是正常的，單只有首頁會出現這樣的問題，
原本查了一下資料，懷疑是標籤跟分類的固定網址造成衝突，
可是升級到2.7.1也沒有改善，最後的解決辦法...
登入到後台，另外貼一篇新的文章，或許他就正常了=.=