Error:"The feed does not have subscriptions by email enabled"

This is one of the error mostly found by the users of the feedburner that can decrease their amount of subscribers which usually a blogger does't want to but I have a quick solution for that.So lets see why the feedburner shows this Error.
Follow the steps:

• Go to feedburner.com
• Then,open the feed you want to enable the e-mail subscription.
• After that got to publicize at top tab.
• Then,E-mail subscription at left sidebar.
• At the end click on the enable e-mail subscription box to enable it.

And you are done!