Could you please help me with one more error that I am facing,

I created 3 solids and now I have to create a solid intersecting these 3 solids, I couldnt do that properly in spaceclaim so I did it in designmodeller.

I have attached a picture of that below:

Everthing is fine after I created it, but there is a error warning message that says,

Warning: Extent surface intersects one or more profiles. Unexpected result may occur.
Context: Extrude Feature Extrude1

Could you please tell me what this error means and what I should do to correct it.

Thank you!!!