Your Apple ID has been disabled

Depending on why it's been disabled you might be able to re-enable it via this page : http://appleid.apple.com, then 'reset your password'

You might then need to log out of your account on your iPad by tapping on your id in Settings > iTunes & App Store and then log back in so as to 'refresh' the account on it.

If that doesn't fix it then contact iTunes Support : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page

If you do this, it wil fix it

1) Go to Setting

2) Go to iTunes & App Store

3) Clicked on the Apple ID and selected the Signed out option

4) sign in again

( now it asks you to put all your information before u start to purchase ) ... this means you have to put a valid credit card info ( new credit card number which you have not used it is preferred) on all required fields

5) Go to app store to see if that fixes it, which it has to

I had the same issue and this is what i did to fix it. 😉