A lot of people use de-activate and disabling an account interchangably. The basic idea is that there is a flag on the account that says "this account is inactive". Disabling/Deactivating an account. Means it can no longer log in.

Account Disabled is a status that can be imposed by various financial institutions, service providers, or governing bodies upon detecting suspicious activities, non-compliance with regulations, security concerns, or at the request of the account holder themselves.

Account is disabled means that the corresponding flag is set in the Account Options property of the user. Acount is locked out means that the account got locked by AD for exceeding the allowed number of failed logon attempts.

Simply logging into a deactivated Instagram account will help you restore it. If you kept your account deactivated for a long time, Instagram may prompt you to accept the platform's updated terms of use to complete the reactivation process. In some cases, Instagram may also want you to verify your phone number.