Failed to find code registration or metadata registration on Unity 6 Game

[quangamedev]

I am using the built-in version of this tool bundled with AssetRipper 1.3.6.

The game: https://apps.apple.com/us/app/picture-block-jam/id6751041839
.ipa: https://drive.google.com/drive/folders/1y_Ww1HCVhoa2zDBfhQ34TdbV4_ljLJuV?usp=sharing

Unity version: 6000.0.62f1

Relevant log:

Cpp2IL : Initializing Metadata...
Cpp2IL : Using actual IL2CPP Metadata version 31.1
Cpp2IL : Initialized Metadata in 133ms
Cpp2IL : Using binary type Mach-O File (from LibCppIL)
Cpp2IL : Searching Binary for Required Data...
Cpp2IL [Error] : No codegen modules found for mscorlib! Aborting search.
Cpp2IL : Got Binary codereg: 0x0, metareg: 0x0 in 2ms.
Cpp2IL : Initializing Binary...
Import [Error] : Could not initialize assembly manager. Switching to the 'Unknown' scripting backend.
[Error] : Cpp2IL.Core.Exceptions.LibCpp2ILInitializationException: Fatal Exception initializing LibCpp2IL!
 ---> System.Exception: Failed to find code registration or metadata registration!
   at LibCpp2IL.Il2CppBinary.Init(UInt64, UInt64, Il2CppMetadata) + 0x1dfe
   at LibCpp2IL.LibCpp2IlBinaryRegistry.CreateAndInit(Byte[], Il2CppMetadata) + 0x54e
   at LibCpp2IL.LibCpp2IlMain.Initialize(Byte[], Byte[], UnityVersion) + 0x1af
   at Cpp2IL.Core.Cpp2IlApi.InitializeLibCpp2Il(String assemblyPath, String metadataPath, UnityVersion unityVersion, Boolean allowUserToInputAddresses) + 0x41
   --- End of inner exception stack trace ---
   at Cpp2IL.Core.Cpp2IlApi.InitializeLibCpp2Il(String assemblyPath, String metadataPath, UnityVersion unityVersion, Boolean allowUserToInputAddresses) + 0xb1
   at AssetRipper.Import.Structure.Assembly.Managers.IL2CppManager.Initialize(PlatformGameStructure) + 0x1a3
   at AssetRipper.Import.Structure.GameStructure.InitializeAssemblyManager(CoreConfiguration) + 0x279

AssetRipper log: AssetRipper_20251124_093607.log

[d0y0uh3arth3whistle]

big chance the UnityFramework is encrypted (the ios version of libil2cpp.so)