For the love of God please can someone help. 
For so many months now I’m in despair with the 6 Sonos speakers I have in this house!

Everytime I try and play an album from my Amazon prime account (which was always working perfectly for 3 years) now isn’t!! It either doesn’t play the artist at all or plays 1 track or so and then plays something completely random. What is that about?!! I’m seriously tearing my hair out!! Please help someone. Thank you