Deleted Apple ID before logging out of it…
Well, this is understandable: "Make sure that you sign out of all your devices to avoid issues with apps that use your Apple ID account or iCloud. After your account is deleted, you can't sign out of iCloud or turn off Find My iPhone Activation Lock on your devices. If you forget to sign out, you might not be able to use your device when your account is deleted."
BUT… yeah… deleted it before logging out was not a smart idea…
Apple should update their thing to where you can log out of a deleted Apple ID except without a password. “Can’t log out? Use your phone number that you added to this email as a recovery to help! We’ll send you a code to get you logged out immediately.”
iPad mini