Docker Kernel compatibility

Hi - as a Docker Newbie, I’m trying to get it to run Home Assistant. Host is an Odroid C2, running Ubuntu 18.04. Kernel is 3.16

Home assistant refuses to start properly - with a plain vanilla installation, so I’m starting to look at potential causes.

On running the check-config.sh script recommended in the “Troubleshooting Docker” guide, I see that one “Generally Necessary”, and several “Optional Features” are missing.

Can anyone advise how I please rectify this? I installed Docker fully in line with the installation guide for Ubuntu

Thanks