Spotify not playing from Volumio

[carlocouvert]

Hello everybody,
I've searched longtime before opening an issue on Github, and I haven't find any solution.
The problem is that I cannot play Spotify from Volumio.
I can browse my library, when I search an artist I can see the Spotify result, BUT when I try to play any spotify songs nothing happen!
I can play Spotify from my phone using spotify connect, but not from volumio.

Here some info on my system:
Volumio version: 2.777
Plugin Spotify: 2.0.2
Plugin Volumio Spotify Connect2: 1.03

Raspberry Pi 3 B+
DAC HiFi Berry DAC+

Here the log when I play something:

May 27 19:51:00 volumio volumio[970]: info: CoreCommandRouter::volumioPlay May 27 19:51:00 volumio volumio[970]: UNSET VOLATILE May 27 19:51:00 volumio volumio[970]: info: CoreStateMachine::play index 7 May 27 19:51:00 volumio volumio[970]: info: CoreStateMachine::setConsumeUpdateService undefined May 27 19:51:00 volumio volumio[970]: info: CoreStateMachine::stop May 27 19:51:00 volumio volumio[970]: info: CoreStateMachine::setConsumeUpdateService undefined May 27 19:51:00 volumio volumio[970]: UNSET VOLATILE May 27 19:51:00 volumio volumio[970]: info: CoreStateMachine::play index undefined May 27 19:51:00 volumio volumio[970]: info: CoreStateMachine::setConsumeUpdateService undefined May 27 19:51:00 volumio volumio[970]: info: CorePlayQueue::getTrack 7 May 27 19:51:00 volumio volumio[970]: info: CoreStateMachine::startPlaybackTimer May 27 19:51:00 volumio volumio[970]: info: CorePlayQueue::getTrack 7 May 27 19:51:00 volumio volumio[970]: info: [1590609060462] ControllerSpop::clearAddPlayTrack May 27 19:51:00 volumio volumio[970]: info: {"service":"spop","type":"song","name":"Celle que vous croyez","title":"Celle que vous croyez","artist":"Ibrahim Maalouf","album":"Celle que vous croyez (Bande originale du film)","uri":"spotify:track:6knsyo8dOT4voKjApWyqAw","samplerate":"320Kbps","bitdepth":"16 bit","trackType":"spotify","albumart":"https://i.scdn.co/image/ab67616d0000b273bb339e70025198496913bba0","duration":396} May 27 19:51:00 volumio volumio[970]: info: [1590609060463] ControllerSpop::sendSpopCommand May 27 19:51:00 volumio volumio[970]: info: ADDING DEFER FOR COMMAND uplay May 27 19:51:00 volumio volumio[970]: error: SPOP command error: Error: This socket has been ended by the other party

Of course I have a Premium account on Spotify.

Let my know if and how I can sen more debugging informations.

Thank you,

Carlo