Millepede optimization errors

Hi all,

I am trying to do an optimization in Millepede and I have arrived in a point where I need to make more automated and less manual what I have already done. That is, after seeing that the basic idea works, I need to make it more automated and will less components/ group components that have the same function, in order to be nice and tidy. Mainly I need to do it with the part where I put the forces and the loads (you can see why in the image attached).

The thing is that after I have finished with the changes and it seems to me right, I just get errors (such as "division by zero" and others) and the optimization does not run and I do not understand where the problem is.

As I have not much experience with Grasshopper and Millepede, I would like to ask if anyone has any idea what could I change to get it to work. So I attach some images of the algorithm of the big version that works and the small one the more automated so that u have some idea what i want to do. Could the problem be in the way I give him the breps in the loads? I have also tried to flatten or graft them by it does not word anyway.

Let me know if something is not clear or if you need part of the file in order to understand better,

Thanx in advance!