Why does it say my account has been disabled from the App Store?

If you see a message that says 'Your account has been disabled in the App Store and iTunes -

https://support.apple.com/en-us/HT208856

M1 Mac mini, macOS 12.1; Watch, series 5 GPS/cellular, watchOS 8.3; iPad Pro 2nd Gen, iPadOS 15.2; iPad Air 2, iPadOS 15.2; iPhone 12 Pro, iOS 15.2; TV 4th Gen, tvOS 15.2; HomePods, audioOS 15.2 and Airport Express w/ Airplay 2

Normally because you own Apple money. A subscription service payment has been declined or your payment card has expired are the usual reasons.

You will need to delete and/or change the payment card associated with your account .

Once done Apple will attempt to settle the debt and automatically re enable your account .

To do this

Tap settings /Apple ID (your name) in the top left /Payment and Shipping ( you will be asked for your password ) then update your payment method