How do I get my puppet's feet to stay on the ground in Character Animator, and not float?

Hi,

I can't seem to get my puppet to stay put.  I've followed along with the tutorials and looked on the forums, followed the steps and still haven't had success.  I believe I have everything in the right order, a crown only on my character's name and the fixed buttons attached to the body positioned over the feet, but still not success.  I have exported my puppet and here is the drop box info:

Dropbox - MASONpuppet.puppet

Thanks so much for your help!