Problem with kangoroo 'folding'.

Hi everyone, can anyone help me about my kangaroo problem, I tried to make a surface using triangle and using offset to create a hole. However, i cannot find out whats wrong with the kangaroo as it does not work. I tried to connect the kangaroo to simulate the folding surfaces. I am going to apply the same concept with origami folding using kangaroo in the forum. It will be very helpful if you can help me.

Thank you.