Thu Oct 31 23:57:08 2019 [Z0][VMM][I]: lxc one-5 20191031155702.613 ERROR start - start.c:start:2124 - No such file or directory - Failed to exec “/sbin/init”
It is possible that the image could be empty. Can you try manually mounting the VM disk located in the system datastore and list its contents ? It should be like /var/lib/one/datastores/0/5/disk.0 with 5 in this case being the VM id.