How to enable apple id

See the following from If your Apple ID is locked or disabled - Apple Support

If your account has been disabled for security reasons

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. 

Click the "Learn how to reset your password" in blue above and follow those instructions.