Apple music will not play

My computer will not play any of my downloaded songs from Apple Music however my iPhone, iPad and old iPod touch (havent used it in 3~ years, haven't checked if it actually has though) can play my downloaded music. My computer has deleted all of the songs that I downloaded, bar the songs which I have bought (either in CD form or from iTunes). I've tried restarting my computer, logging in and out of my Apple ID, though from what I can see, im still logged into Apple Music. Apparently iCloud is synced up and all devices are the same (they are not). I'm pretty annoyed since I've had the account since 2017, and had worked up a collection of nearly 500 songs and would hate to sit and download them all again.

Hope someone has a solution. Thanks,

Moth