Hello, well, I'm doing a script to plan and still is very green, the question is that instancio 2 bodies when it is in air, and eliminate them when falling to the ground, until there is everything right, the problem is that when it collides with the model that is a building I want to be ditched, but as I go I throw a mistake, of course I can not destroy what does not exist, thank you.
https://pastebin.com/730A5996