unable join cluster proxmox mail gateway

[powersupport]

Hi,


We have installed mail gateway in two servers and tried to add the second slave server to master but getting errors as below

pmgcm join masterIP --fingerprint 7C:05:96:2C:A4:386:FD:E2:CB:B7:2F:144:92D:FC:30:5F:C0:99:16:CC:AC:56:81:8B:26:85:77:01:B8
Enter password: ************
Use of uninitialized value $rootrsapubkey in substitution (s///) at /usr/share/perl5/PMG/Cluster.pm line 115.
Use of uninitialized value $rootrsapubkey in substitution (s///) at /usr/share/perl5/PMG/Cluster.pm line 116.
Use of uninitialized value $rootrsapubkey in pattern match (m//) at /usr/share/perl5/PMG/Cluster.pm line 118.
cluster join failed: unable to parse /root/.ssh/id_rsa.pub

Couldnt add from GUI as well, both are the same installation
pmgversion -v
proxmox-mailgateway: 6.4-1 (API: 6.4-3/225ecb80, running kernel: 5.4.106-1-pve)
pmg-api: 6.4-3
pmg-gui: 2.4-1
pve-kernel-5.4: 6.3-8
pve-kernel-helper: 6.3-8
pve-kernel-5.4.106-1-pve: 5.4.106-1
clamav-daemon: 0.102.4+dfsg-0+deb10u1
libarchive-perl: 3.3.3-1
libjs-extjs: 6.0.1-10
libjs-framework7: 4.4.7-1
libpve-apiclient-perl: 3.1-3
libpve-common-perl: 6.3-5
libpve-http-server-perl: 3.1-1
libxdgmime-perl: 0.01-5
lvm2: 2.03.02-3
pmg-docs: 6.4-1
pmg-log-tracker: 2.1.9-1
postgresql-11: 11.11-0+deb10u1
proxmox-mini-journalreader: 1.1-1
proxmox-spamassassin: 3.4.5-1
proxmox-widget-toolkit: 2.4-9
pve-firmware: 3.2-2
pve-xtermjs: 4.7.0-3
zfsutils-linux: 2.0.4-pve1

Can anyone assist us with this?

Thank you

 

[dcsapak]

cluster join failed: unable to parse /root/.ssh/id_rsa.pub

does that file exist? if yes, is it a valid public ssh cert?