Please provide some more information on this problem.
1
Your screenshot indicates you currently have the Windows 11 Home version installed and it is not activated, do oyu have a Home licence for your PC?
2
You indicate you are trying to upgrade from Home to Pro, where did you get the Windows 11 Pro licence?
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.