● If the message says "your account has been 'disabled in the App Store and iTunes Store" or "locked" then you must contact Apple; you cannot resolve this yourself. Apple provides a link for this specific issue. Tap or click here --> https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362 .
● If your account has been disabled for security reasons the solution is to reset your password as outlined in this document: If you forgot your Apple ID password - Apple Support
If you are unsuccessful you may need to request account recovery as outlined in this document How to use account recovery when you can’t reset your Apple ID password - Apple Support , or additional assistance from Apple Security: Contact Apple for help with Apple ID account security - Apple Support
If it's another reason contact Apple --> Choose your country or region - Official Apple Support
Select your country (also look for "other" regions), then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.
or:
Contact Apple for support and service by telephone --> Contact Apple for support and service - Apple Support