Migration issues after moving to virtual from physical HW

[dibun]

I am running OPNsense 20.7.4 on pcengines APU3 HW and recently I bought a fanless minipc and installed Proxmox there. I export the running-config from APU3 and imported into the VM.

The VM won't boot as it cannot find the Igb0,1 and 2 interfaces and got stuck after the HTTPS, SSH keys section.

I really don't want to create the configuration from scratch again as it will consume a lot of time. Is there any easy way to migrate?

Thanks in advance