Hello,
Did you make this accidental purchase from a third party website?
Looks like you now have KMS license.
This type of license is for organization users only.
You can type cmd in the search on the taskbar and hit enter to launch command prompt, then run the following command:
slmgr /dlv
A pop up window will show you some details about your license. You can see if you mention volume license KMS somewhere.
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You can type cmd in the search on the taskbar, and choose "run as administrator" to launch Command Prompt, then run this command:
wmic path softwarelicensingservice get OA3xOriginalProductKey
If it returns a key, then you can clean install Windows Home edition to go back to be properly licensed.