I've encountered this issue before where albums/songs of certain artists will vanish on Spotify all of a sudden. Generally, the artist/record label may decide to pull the album/song from the music distributor (Spotify) either because the artist decided to pull it, or because the term of contract expired. It should hopefully reappear in the meantime but if possible, you could try reaching out to the artist/record label to find out more.
Hope this helps!
Have a great day!
A_MusicophileRock Star 2
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