HB Add Subface Warning - "The following sub-faces were not matched with any parent Face"

Hello,

I am doing a thermal comfort analysis of a house. I defined the rooms of the house with a separate closed brep. However, for some rooms I get a warning like this in HB Add Subface. (1. The following sub-faces were not matched with any parent Face: Aperture_8b0cd04b, Aperture_69f532b9).

How can I solve this?
I would be very happy if you could help me.

Make sure all of your aperture geometry is coplanar and fully bounded by the parent Faces of the Room.

It was very useful for me.

Thank you.