My Apple ID has been blocked from the App Store

Do you mean that your Apple ID has been blocked from the App Store and iTunes?

If you see a message that says "Your account has been disabled in the App Store and iTunes", there may be a problem with the payment method that you have on file.

When you see the message, don't try to edit any of your account information. Instead, contact Apple Support for help.

Source: If you see a message that says “Your account has been disabled in the App Store and iTunes” – Apple Support

If your Apple ID has been disabled and it is not just for the App Store and iTunes, check out - If your Apple ID has been locked or disabled – Apple Support