Which issue did you want to discuss in this topic? I was trying to be helpful by offering a diagnostic file that may have assisted in the original poster's problem as I encountered a similar problem in 6.7.2 and he did not provide one.
I was stumbling through the instructions I found here:
As to why I was trying to use Virt-Manager, it's because I was unable to get the GPU passed through, https://wiki.unraid.net/Unraid_6/Frequently_Asked_Questions#I.27m_having_problems_passing_through_my_RTX-class_GPU_to_a_virtual_machine, and was exploring the ideas I found in the Unraid community. If you'd like to help me with my GPU problem, then I can start a new topic for that.
In the meantime, since I can't get past the docker error, I'm trying another method: