Error in deactivating my license for SDL Trados Studio 2019 FL

Whenever I try to deactivate my license for SDL Trados Studio 2019 Freelance in my laptop in order to install it in a new computer, I get the following message:

"Deactivation failed. Error [202]: lock info is not matching."

What does it mean?

How can I solve this error?

Any help is much appreciated.