Failed to start ssh

I was useing sudo systemctl enable ssh, but it pops out a lot missing.
please see the attached screenshot.

Hi jieyng,

Your issue seems similar as another topic, please refer to below comments:
DrivePX2 software stack does not disturb your configuration on host. I have tested SSH connection on my host following https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys-on-ubuntu-1604 and accessed DrivePX2 with 5.0.10.3. I don’t see any problem at all.

See: https://devtalk.nvidia.com/default/topic/1046814/drive-linux/ssh-is-down/post/5312237/#5312237

Thanks, Kayccc,
I observed the new nvidia Linux system is ok.
Since I do one time sudo apt-get upgrade. The ssh failed.

Does it mean we probably don’t do the upgrade?