My Family Setup Needed Lumia 520

Phone says my family setup needed when already set up. When i install whatsapp in my nokia lumia 520, it says `my family setup is needed` plz help? I want to solve family setup needed so how can i do? Myfamily setup needed. Its showing my family setup needed while installing from store?

If you own a Windows Phone, chances are that you have used your Microsoft account credentials to configure your device. However, there may be times when you want to change the account you use on the phone. This can happen if you have more than one Microsoft account and want to use the other account, or you want to use the account that is synced with your Xbox Live services or you may have moved to another country and therefore want to change it. Google earth pro installer error 1603.