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Why is this coming up? Ryzen and "this device" are the same PC???
In your computer, check the computers name, a name change may have occured, either user caused, or OS upgrade foul up.
You can bring up Adobe.com, sign in, manage your account, view plan, then at bottom, deactivate the computer(s).
Then bring up your copy of Adobe Creative Cloud Desktop App, sign in, and install LrC if required.