How to fix a deactivated account
As a Google Ad Grants recipient, your organization is required to actively manage your AdWords account by signing in at least once a month. Any account left unmanaged or unattended over 30 days is subject to automatic deactivation without notification.
If this happens and you would like to reinstate your account, you can contact the AdWords team via phone, email, or chat.
Please note, however, that if you repeatedly break the policy on active account management, your account may be cancelled and removed from the Google Ad Grants program.