Cannot boot on macOS Monterey Beta (Kernel panic).

I used your repo files (release 21/07/2021) to boot my Thinkpad P52 (CPU Xeon E-2176) on mac OS 12 beta but without success. While boot on "mac-installer" stage the screen shown "support.apple.com/mac/startup" message and suddenly freeze. Previously I also used your files for Big Sur and Catalina without any problems. How to solve this issue? Thank you.