I’m having some favicon problems?

Howdy, I get recently put on a favicon that will my article, and it showed upwards and worked just fine.

But then, I attempted adding a further favicon into a different article, using a similar format:

also it appeared because the favicon in the first article I built.I used a similar file extendable for equally, if which makes any difference (.png).Does anyone learn how I could possibly solve this kind of problem

Many thanks!

That is named a favicon.These a couple of articles let you know how to perform it –
http://www.small-business-software.net/online-business-resources.htm

Just what Favicon :
http://www.developer-resource.com/what-is-a-favicon.htm

Goodluck.