Minecraft PE license error?

My friend bought the Minecraft Pocket version from the Google Play Store a while ago. Everything worked great, but suddenly a license error is displayed. We have searched and tried a lot on the Internet… Even reinstalled Minecraft but nothing helped.

Can anyone help?

Is the account on which you bought / installed Minecraft still registered on your mobile phone? Because I had that too.

Otherwise you have to see if it's the beta version. Otherwise just register for the beta phase (it's free) (if it still exists)

Yep is the same account and why do you have to sign up for the beta?

You don't have to. You can. The beta is only so that you can try out content before the actual publication. As I said, it has something to do with it.

MINECRAFT