Startup Failed after New Install

I installed Oracle VM and the haos_ova-6.0.vdi on a windows 10 laptop.
After doing all of the configuration, I ran “Start” from the Oracle VM Virtual
Box. Everything worked correctly. I was able to perform a number of simple
tasks.

I want to have the system start when the OS Boots. I have tried a number of things but nothing works.

I then booted the machine without any attempt to start the VM. When I run the Oracle VM and select “Start” I get the message…

Failed to open a session for the virtual machine “HomeAssistant”.

What worked after initial installation does not work after a reboot.
Help would be appreciated.

Milt