Problem with Proxmox VE 2.0 Cluster on Hetzner

someone has a similar problem with servers on Hetzener? And how to fix it?

oot@node1 ~ # pvecm add 78.9.9.9
The authenticity of host '78.9.9.9 (78.9.9.9)' can't be established.
RSA key fingerprint is f7:22:7f:35:41:e3:90:c0:4c:9e:5c:0f:fa:57:48:46.
Are you sure you want to continue connecting (yes/no)? yes
root@78.9.9.9 password:
copy corosync auth key
stopping pve-cluster service
Stopping pve cluster filesystem: pve-cluster.
backup old database
Starting pve cluster filesystem : pve-clustercan't create shared ssh key database '/etc/pve/priv/authorized_keys'
.
Starting cluster:
Checking if cluster has been disabled at boot... [ OK ]
Checking Network Manager... [ OK ]
Global setup... [ OK ]
Loading kernel modules... [ OK ]
Mounting configfs... [ OK ]
Starting cman... [ OK ]
Waiting for quorum... Timed-out waiting for cluster
[FAILED]
waiting for quorum...