Alexa Rank No Data Being Changed

After struggling to get the value of the Alexa Rank is good with numbers below 1 million, one of my blog suddenly No Data figures show.
I was surprised at a glance, and have bad thoughts, what may be exposed to my blog banned?
Show how the blog happens if I have raised in such a way in the end affected banned?
I try to search for information and found that many bloggers who had experienced the same thing. I wait for 2-3 days, the view remains unchanged. I was worry. Finally, I return to alexa.com website and find out what can I do.
I try again to refreshed Alexa widget of my blog. I go to the Webmaster’s Corner and click on Widgets. There are 3 options, I choose the second widget. Widget where I was the first widget.
After I successfully install again ..! Alexa Rank numbers appear again.
Why do I have to wrestle Alexa install widgets? Because the Alexa widget in fact this is very influential to the value Alexa Rank of my blogs.
So this lesson may be taken for the blogger who had experienced the same as me.