invalid pmg ticket

Hi, i have a cluster. i failed to new node join. master root@pmg3:~# pmgversion -v proxmox-mailgateway: 6.1-1 (API: 6.1-2/53ccdd75, running kernel: 5.3.10-1-pve) pmg-api: 6.1-2 pmg-gui: 2.1-3 pve-kernel-5.3: 6.0-12 pve-kernel-helper: 6.0-12 pve-kernel-5.3.10-1-pve: 5.3.10-1 libarchive-perl...