How to restart volumio

I am trying to configure NFS with my Synology. When I put the mount path as volume1/music versus /volume1/music, it will freeze volumio.

My question is, how do I restart the volumio without restart the box ?
I tried to restart both php-fpm and mpd, the homepage works, but when I try to go into any other pages like Library, it will just stuck at loading forever.

The NFS issue is probably for a different thread…