Asking for a renewal despite not needing one

Hi,

I recently reset my computer, deleting all my programs and files. I put everything I wanted to keep on an external hard drive but forgot to put Norton on it so now I've lost Norton. I tried to reinstall it but every time I open the setup it tells me "Norton 360 doesn't work on this version of Windows". This then told me to go onto a setup website and log into my account. Upon doing so I was told my subscription had expired despite the fact it hadn't and now I can't install Norton. Does anyone know what to do?

Thanks.

P.S I'm running on Windows 10