I can’t download on App Store

If your account is locked, you will need to reset your password

If you see one of the following messages, your Apple ID automatically locked to protect your security and you can't sign in to any Apple services:

• “This Apple ID has been disabled for security reasons”
• "You can't sign in because your account was disabled for security reasons"
• "This Apple ID has been locked for security reasons"

You need to reset your password to regain access. Learn how to reset your password. 

If you see the message that your account is disabled in the App Store and iTunes, there is something wrong with your account that cannot be fixed at your end. Please  contact Apple Support for further support on this issue

You cannot login because your account has been locked.

Hello,

With reference to the support article If a message says 'Your account has been disabled in the App Store and iTunes' - Apple Support , you must contact Apple for help if you see that message or one saying "You cannot login because your account has been locked". This is not something you can fix yourself.

Tap or click here to be taken directly to the people at Apple helping with this ➞ https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362

If it is another reason, post with more details.