Was the Apple ID requested to be deactivated at some point. This is something that the owner of the account has to request.It does not happen automatically. When that happened you should have received an email with a re-activation code.
You need to contact Apple support to re-activate the account by providing the code you were sent.
See here: link-> How to deactivate your Apple ID account - Apple Support
Can I reactivate my account?
Yes. If you request account deactivation, you'll receive a unique alphanumeric access code. When you're ready to reactivate your Apple ID, contact Apple Support, provide your access code, and we’ll help you reactivate your account. If you lose this code, we won't be able to help reactivate your account.