Song library in LAN does not work with Lollypop and Rhythmbox

Hi everyone!

In these days I am trying to let my desktop music player read my local LAN mp3 library but none works.

-My computer are tied to the server via sftp.
-I can access all of my files via FILE/Thunar/…
-when I configure Rythmbox or Lollipop to access library via sftp, it does not work (Lollipop sometimes crashes).
-in comparison, VLC/MPV show no problem at all.

I thought of a “sudo mount --bind /run/$SOURCE/sftp… to a /home/$DEST/sftp” but mount refuses $SOURCE

Any help?
Thank You!