[tj343]

I'm performing a 3D CFD simulation in ansys fluent on a laboratory in order to verify the pressure map and overall ventilation design. During meshing, ansys is displaying the following error "The mesh file exporter does not support overlapping geometry in Contact Regions. Please resolve the issue and try again"
I build the geometry in Autocad by drawing an outline of the partitions, extruding, and adding surfaces for boundary conditions.Afterwards, I sliced up the volume in the ansys workbench design modeler. I can't seem to understand what the error is trying to tell me.

I want someone to tell me what this error means and possibly point me in the direction of fixing it as i'm no CFD expert and i'm still learning .

Any help would be greatly appreciated .
Thank You

Mesh File.jpg
Design modeler file.jpg