Old saved music doesn't appears

[Skillz47]

Plan

Premium

Country

France

Device

Macbook Pro (+ Windows + iPhone)

My Question or Issue

I tried to install Spotify on my Macbook Pro after a factory reset. But in my saved titles, I can't see my old songs, those saved before I setup Spotify on the computer, but If i add songs with the macbook pro, I see them, and only them. I tried to reinstall Spotify, disconnect, and I don't know how to repair it.