Mesh Check failed
 

Hey everyone,
I meshed a volume using the Cutcell algorithm of the Ansys mesher.When I opened it in Ansys Fluent,I used the repair options provided by the Fluent platform.The result is that I am getting a min orthogonal quality of 0.61 which seems fine,but at the same time, clicking the mesh "check" button generates this message "Zone 2:11 cell(s) might not be closed, e.g. a face is missing (on 0)"....
What might the error mean??
Any help is appreciated.Thnx.