How Do I Trace Errors In Facial Autorig?

[Banshee]

Hello everyone,

I am trying to apply facial autorig on a head geometry, but I can't generate a character mask after fitting the polygonal cage on the face.

I get this same error on my Houdini console every time I click on the "generate character mask" button:

Traceback (most recent call last):
  File "C:/PROGRA~1/Side Effects Software/Houdini 17.0.459/houdini/python2.7libs\autorigs\modules\advancedFace\advancedFaceGuideOptions.py", line 292, in onGenerateCharacterClicked
    self.model.generateCharacter()
  File "C:/PROGRA~1/Side Effects Software/Houdini 17.0.459/houdini/python2.7libs\autorigs\modules\advancedFace\advancedFaceGuideModel.py", line 120, in generateCharacter
    fxn()
  File "C:/PROGRA~1/Side Effects Software/Houdini 17.0.459/houdini/python2.7libs\autorigs\modules\advancedFace\buildAdvancedFaceGuide.py", line 156, in generateCharacter
    self.characterguides.generateCharacter()
  File "C:/PROGRA~1/Side Effects Software/Houdini 17.0.459/houdini/python2.7libs\autorigs\modules\advancedFace\character\buildCharacterGuide.py", line 122, in generateCharacter
    self.bakeCage()
  File "C:/PROGRA~1/Side Effects Software/Houdini 17.0.459/houdini/python2.7libs\autorigs\modules\advancedFace\character\buildCharacterGuide.py", line 173, in bakeCage
    idx = bs_idxmap.get(edit.name())

AttributeError: 'NoneType' object has no attribute 'name'

By the way, this is what my polycage looks like, just in case there anyone notices something I'm missing: