I can't access my Apple Music Library after resubscribing

I had a library of numerous albums on Apple Music but I unsubscribed for some time. I resubscribed tonight with the same AppleID but the albums I saved have disappeared. I had done this before (unsubscribing and resubscribing) and then I had the access to all my previous library. But this time, all seems to have erased.

I want to know how to recover those and if I can't, I need a specific reason Why?.