unable to deactivate license

I need to deactivate my license for SDL Trados Studio 2019 Freelance, so that i can use it on my new computer. 

I tried deactivating my license both online and offline but it fails both times.

I generated an offline deactivation authorization and copied it into the deactivation certificate.

Then i clicked on confirm offline deactivation.

This message appeared: "An error has occurred with your offline-deactivation. If you continue to have problems, please Please log a support request."

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