About blueprint error when starting faceARsample

ue4 I am a beginner. I’m testing the Face AR Sample.
From play, select a new editor window (PIE) and try to start the game,
Always, the following error message will occur.

Blueprint runtime error: “No access to try to read the property FaceGeo”

I’ve checked the blueprints, but I don’t have enough knowledge to even infer what properties are trying to read FaceGeo.
I might have done something else, but I just started the sample project.

If you have any idea how to solve this error, please let us know.