Deactivating a Studio 2017 license

Hello,

Please help me deactivate my license, as it doesn't work in any of the online or offline options.

Online:
Deactivation failed. Could not revoke this license. - Revocation is either complete or revocation proof is already uploaded.

Offline:
Failed to deactivate offline. The specified deactivation authorization may not be valid...

Regards,
George