Your account has been disabled in the App Store and iTunes.

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 11.4; Watch, series 5 GPS/cellular, watchOS 7.5; iPad Pro 2nd Gen, iPadOS 14.6; iPad Air 2, iPadOS 14.6; iPhone 12 Pro, iOS 14.6; TV 4th Gen, tvOS 14.6  HomePods, audioOS 14.6 and Airport Express w/ Airplay 2

The point is to use the link to contact Apple Support in the article. This issue can't be fixed from your end or by the people on these boards.

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