OpenCore ACPI Exception Big Sur: AE_NOT_FOUND During name lookup/catalog

I am running Catalina at the moment and it works perfectly on my system using Open Core. While trying to install Big Sur, I get stuck during before setup. I have setup EFI folder from scratch using latest Open Core. I tried both prebuilt SSDT as well as custom SSDT using SSDTTime but without success.

I have attached EFI Folder and error screenshot

Errors:

No local variables are initialized for method [PXSX]
ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20160930/psobject-310)...

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