Re-installation of Trados Studio 2019 on new computer without deactivating on old computer

Good evening. My computer was hacked (all files encrypted, etc.) and I, basically, lost everything. Long story short, I bought a new computer and downloaded Trados, not knowing that I had to deactivate Trados in the old computer which, by now, has been factory reset. 

Right now, Trados is not opening a new package sent my way to translate. I am getting the following message: "Unable to find the specified file." What can I do to deactivate the license that I had in the old computer--now gone--and activate it in the new one?

Please help me.

Thank you.

María