Extrude to Shell Problem

Can anyone help me with this problem I have.  I attached the file and inserted a picture below to help explain.  I have no idea why it is doing this and would like to fix the problem if at all possible.  All I have been trying to do is extrude a flat piece to the body, but no matter which way I do it, I always have this problem.  I will try to answer any questions possible if I can.

SolidworksParts And Features