[Solved][Spotify plugin] How to synchronize all my playlists

Hi all.
I’ve got a strange problem with my x86 volumio distro and Spotify plugin.
I installed volumio on a NUC.
I’m using last stable version.
From Volumio, I installed Spotify plugin automatically, and I’ve a premium account.
No problem at all to listen music.
But, and I don’t understand why, only my collaborative playlist is synchronized…
Can someone help me?

in fact, I can synchronize a personal playlist with personal songs, but when I add a spotify playlist, impossible to synchronize.
This playlist is invisible…
Is any solution?


is someone can help me to contact the contributor af the spotify plugin we can directly install from volumio?

There is another easier solution:
using spotify connect plugin!