Error message!

raintung

Hello,

When I use gambit2.0.4, the following error message appear:Currently, 3D boundary layers are limited to flat face groups with the same boundary layer on all faces.A discontinuity has been found where one face has a boundary layer and the adjacent one does not:The problems occur in volume 4 along edge 196.

I don't know what does it mean and what I can do. Who can tell me? Thank you.