Docker: Error response from daemon: mountpoint for devices not found


I have a QNAP NAS and within the container station I have created two containers. One for Ubuntu 16.04 LXC and the second Ubuntu18.04 LXC.

I have followed the installation for Docker, which can be found here.

When I run hello world:

sudo docker run hello-world

It returns me the below error:

docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:297: applying cgroup configuration for process caused "mountpoint for devices not found"": unknown.

I am receiving these errors for both versions of Ubuntu.

In container station, I have shared a local drive to a mount point, screen can be found here. I have tried Googling this and I feel somewhat lost.

Can someone point me in the right direction please?

submitted by /u/captainpirate28
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Source: Reddit