I cannot deactivate SDL 2017 Starter Free so I cannot activate SDL 2017 Freelance

Hello, I would like to ask for a help. I bought upgrade from 2015 to 2017 and just now I found I have 2017 at my laptop - but Starter Free edition which I used for work for one of my clients and they delivered me some license for 190 days. Unfortunately it already expired and I cannot access to deativation button in the program. And I suppose off-line deactivation doesn´t work too.

I tried to uninstall and reinstall SDL 2017 but it didn´t help.

When I enter my valid license key for SDL 2017 Freelance it doesn´t work.

How can I fix this problem, please?

Thank you.

Kind wishes,

Eva