Matlab has encountered an internal problem and needs to close.

clc;
clear all;
a3=200;
d1=130;
d5=275;
d7=90;
q1=50; 
q2=25;
q3=40;
q4=35;
q5=80;
q6=60;
q7=110;
Ss=( [q1 q2 q3 q4 q5 q6  q7]* pi/180);
 l(1) = Link([0 d1    0           0]);
 l(2) = Link([0 0    0             -pi/2]);
 l(3) = Link([0 0    a3            pi/2]);
 l(4) = Link([0 0    0         -pi/2]);
 l(5) = Link([0 d5    0             pi/2]);
 l(6) = Link([0 0    0            -pi/2]);
l(7) = Link([0 d7    0              pi/2]);
hamir=SerialLink (l);
hamir.name='hamir.1453';
[Q,QD,QDD] = mtraj(@lspb, [0 2 3 1 0 2 0], [0 2 3 1 0 2 0],20);
x=[Q,QD,QDD];
for i=1:7
 hamir.dyn(i)
i=i+1;
end
qdd=hamir.rne(x)

ı want to find inverse dynamics of robot according to given links and when ı run code it gives an error window and then ı need to close matlab can u help me how can ı fiz this error?