You do not need to worry about the 2009 reference that is a widely reported bug and does not indicate a problem with the Windows installation or activation.
1
Click your Start Button, type cmd then right click Command Prompt and choose 'Run as Administrator'
Run or paste this command and hit Enter:
slmgr.vbs /dlv
Please post a screenshot of the resulting dialog
3
Download the free ShowKeyPlus app from the Microsoft Store.
Please provide a screenshot of that app window and please hide your product key in the screenshot.