Nfs-client-provisioner not working from inside cluster

i’m trying to use nfs-client-provisioner but i’m encountering some troubles.
I got 3 server with proxmox and a freenas one, and a common centos vm on a proxmox node can easily mount nfs shares from freenas.
I made a small cluster with rancheros as base os and everything else seems to work well.
When i try to install nfs-client-provisioner with helm, i always get a timeout on the pods.
I then tried gettin inside a bash cli from an ubuntu container, and i got this message : Output: mount.nfs: rpc.statd is not running but is required for remote locking.
mount.nfs: Either use ‘-o nolock’ to keep locks local, or start statd.

What am i doing wrong?