scenarioFormationReconfig

[LunaCP]

Hi everyone, I have a question about the intagrated example 'Formation Reconfiguration'. If I try to simulate the same example but with three spacecraft that are 16U, I got this error
ERROR: received NAN rVec or vVec values.
Traceback (most recent call last):
File "/home/stage_code/Formation_Reconf_simu.py", line 371, in
run(
File "/home/stage_code/Formation_Reconf_simu.py", line 329, in run
oed[i, 0] = (oe3_tmp.a - oe_tmp.a)/oe_tmp.a
AttributeError: 'NoneType' object has no attribute 'a'

the change that I ve made starting from the example are about inerzia matrix and mass of the spacecrafts as following
h=0.60 #m
l=0.30 #m
p=0.30 #m
a11=l^2 + p^2
a22=h^2+p^2
a33=h^2+l^2
scObject.hub.mHub = 40.0 # kg - spacecraft mass
I=[(40/12)*a11,0,0,
0,(40/12)*a22,0,
0,0,(40/12)*a33]

Does anyone have an idea what this error might be due to?