How to recover crash-on-startup project?

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Assertion failed: Package [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectBase.cpp] [Line: 178]

UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Core
UnrealEditor_Engine
UnrealEditor
UnrealEditor
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
kernel32
ntdll

The project crashed after I installed SDK and trying to pack the project. I am able to going into the project by deleting “Defaultengine.ini”, but whenever I try to open the map that I was working on, I get crash again… Plz help! Here’s the crash log in the zip file.
UECC-Windows-E16556DD463B3E44CAF07BA18EBDD2DC_0000.zip (246.2 KB)