I'm using Proxmox and had the same issue.
To fix, I disconnected network connection on the tick box on Proxmox, and when set up got to 'setting up DHCP' (Not DHCP6 with network deactivated, for some reason?), I unticked disconnected box on Proxmox, then the installation continued without error.
Now have OMV5.3.4 running in Proxmox without issue.
Hope this helps someone else having same issue with blue screen at DHCP6 setup. 