Your account has been disabled in the App Store and iTunes

1.

If you see a message that says "Your account has been disabled in the App Store and iTunes", contact Apple Support for help.

Check ⤵️ 

2.

If your payment method is declined in the App Store or iTunes Store

If your payment method is declined in the App Store or iTunes Store - Apple Support

Get more help ⤵️

• If you disputed a charge from the App Store or iTunes Store, contact your financial institution again to authorize that charge and future purchases from the App Store or iTunes Store.
• If you're outside of the United States, you might need to contact your financial institution to allow international purchases.
• In some countries and regions, your payment method might be declined because of changes to local law. Learn about billing and purchases in Europe or what to do if your card is declined in India.
• If you still need help, contact Apple Support.

3.

If you can't make purchases or update apps, including free apps, you need to update your payment method or add a new one. 

4.

and changed apple password

See -> What to do after you change your Apple ID or password

What to do after you change your Apple ID or password - Apple Support

If you see a message that says your account has been disabled in the App Store and iTunes Store, contact Apple Support for help. 

See this links for reference

If your Apple ID is locked or disabled - Apple Support

What to do if your Apple ID is Locked or … - Apple Community