Grasshopper + Kangaroo

Hi ! 
I have a problem.
At first the kangaroo setting wasn't running with the mesh (it gave me an error) , but for some reason now it works.

Now, the thing is that when I use the animation from kangaroo, only the points from the mesh move, but not the surfaces.

I appreciatte all the answers, I'm really new at this, I'm doing this with a tutorial
Thanks !


Oh and if it helps, what I'm trying to do is the thing in this video tutorial
https://www.youtube.com/watch?v=rqoRbiwz5Zc