Windows 11 deactivated itself after 24H2 update

[Microsoft Windows]

Everything was fine, until I've updated my Windows 11 to 24h2 version. Now, it says my Windows is deactivated.I've bought my computer less than a year ago - Windows 11 was already installed on it. I tried using backup key from register editor and it didn't work out. I can't find Windows sticker on my device. I've typed `slmgr.vbs /dlv` into CMD but I am not sure which information from a popup window I can safely show.Before applying backup product key it showed error code `0xC004F200` as far as I can remember. Now (after applying backup key), it gives me error `0x803FA067`.What am I supposed t

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