Blender - Transfer Data Shapes Error

I am following the tutorial step by step, everything works fine until I press the “Transfer Shape Data” Button And I get this error:

\Blender Foundation\Blender\3.6\scripts\addons\omni_audio2face\operators.py", line 857, in execute
source_shapes = [x.name for x in source.data.shape_keys.key_blocks if not x.name == “Basis”]
AttributeError: ‘NoneType’ object has no attribute ‘key_blocks’

I tried different versions:
Blender 4.2.0
Blender 3.6.0
Audio2Face 2023.2.0
Audio2Face 2022.1.2

And this is still the same message.

Could you please help me with this? It has been 4 days and I can’t find any solution.

Thank you in advance

Are you making sure that you select the original mesh before pressing Transfer Shape Data?