Error: 403 Forbidden - Apple-ID

basically i cannot use my old imac whatever i tried....any fixes? how do i bypass this or how do install a macos version without internet? Because i tried my usb and its still asks me for wifi connection :( Don't know what to do im stuck for days now and no one on the internet has any fix for me, even tried to set the time from terminal. help!!

submitted by /u/Hauadorth
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