Why social network sharing count disappears?

Topics: Controls
Apr 4, 2012 at 1:43 PM

I am using social network sharing widget in my blog. These appear on top of blog posts and below the blog post. 

I notice that the tweet count or facebook count is unstable. As I refresh the page or visit my site later any day, the count disappears and initializes to zero.

Why the count becomes 0?