Cannot Deactivate License

Hi,

I use SDL Trados Studio 2017 Professional. I want to deactivate this license so that I can reuse the license code to use at my home, but it does not allow me to deactivate.

It gives me the error message "Deactivation failed. Could not revoke this license. - Revocation is either complete or revocation proof is already uploaded."

What needs to be done here?