1) Clear CMOS (either by unplug power/remove battery/wait method or onboard button)
2) Reflash BIOS to the previous one found on Asus website (not 0404)
3) Load optimized defaults and save
4) Shutdown
5) Clear CMOS
6) load optimized defaults
7) Setup BIOS based on the guide
8) Set macOS UEFI NVMe as boot priority.
Also unplug ALL usb devices except necessary ones like keyboard and mouse into USB2.0 ports in the rear next to the Ethernet ports (not 3.0). Do not use USB hubs for now just direct connections.
Only keep a small amount of RAM in the slots for testing purposes.
I’ve had your error before I forgot how exactly I fixed it.
There seems to be a problem with your boards NVRAM but I’m hoping the BIOS reflash will help.