Remapping a box morph surface with an attractor point

Hi I am currently trying to re-create the following pattern and am struggling to do so as I cannot get the script to re-map based on an attractor point. I cannot figure out what the issue is, if someone could please have a look at this it would be most appreciated.

I am trying to cause distortion to my lunchbox diamond pattern with an attractor point. Please have a look at the script below.