Integrator does not accept input

Hello, I’m trying make a model in simulink of an inverted pendulum and I can’t simulate the space state. It’s still telling me about that the integrator does not accept the input. Does anyone know what do to in this situation?
The formula that I’m trying to simulate:

Simulation:

The error:

Matlab code:
%%Parameters
Mp = 0.272;
dM = 0.071;
g = 9.81;
J = 0.002;
Jw = 3.941*10^-5;
b_theta = 0.82*10^-3;
b_altha_kmke_Ra = 1.202*10^-4;
km_Ra = 1.837*10^-4;

%%Matrice
A = [0 1 0 0;
(Mp*dM*g)/J -(b_theta)/J 0 1/J*b_altha_kmke_Ra;
0 0 0 1;
-(Mp*g*dM)/J b_theta/J 0 -(J+Jw)/(J*Jw)*b_altha_kmke_Ra];
B = [0 0;
-1/J*km_Ra 1/J;
0 0;
(J+Jw)/(J*Jw)*km_Ra -1/J]
C = [1 0 0 0;
0 1 0 0;
0 0 1 0;
0 0 0 0];
D = [0 0; 0 0;0 0;0 0];

%%Build system
sys = ss(A,B,C,D);
x0 = [5*pi/180;0;0;0]; %initial condition for the integratorHello, I’m trying make a model in simulink of an inverted pendulum and I can’t simulate the space state. It’s still telling me about that the integrator does not accept the input. Does anyone know what do to in this situation?
The formula that I’m trying to simulate:

Simulation:

The error:

Matlab code:
%%Parameters
Mp = 0.272;
dM = 0.071;
g = 9.81;
J = 0.002;
Jw = 3.941*10^-5;
b_theta = 0.82*10^-3;
b_altha_kmke_Ra = 1.202*10^-4;
km_Ra = 1.837*10^-4;

%%Build system
sys = ss(A,B,C,D);
x0 = [5*pi/180;0;0;0]; %initial condition for the integrator Hello, I’m trying make a model in simulink of an inverted pendulum and I can’t simulate the space state. It’s still telling me about that the integrator does not accept the input. Does anyone know what do to in this situation?
The formula that I’m trying to simulate:

Simulation:

The error:

Matlab code:
%%Parameters
Mp = 0.272;
dM = 0.071;
g = 9.81;
J = 0.002;
Jw = 3.941*10^-5;
b_theta = 0.82*10^-3;
b_altha_kmke_Ra = 1.202*10^-4;
km_Ra = 1.837*10^-4;

%%Build system
sys = ss(A,B,C,D);
x0 = [5*pi/180;0;0;0]; %initial condition for the integrator simulink, equation MATLAB Answers — New Questions

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