please help me about this code:

im trying to min Alphaa, over a LMI Like below :

```
clc
clear all
clc
%%%%%%%%%%%%%%%System%%%%%%%%%%%%%%%%%%%%%
A=[-0.0266 -40 -18.897 -32.09 3.2509 -0.7626;
0.0001 -1.8997 0.9831 -0.0007 -0.1708 -0.005;
0.0123 11.72 -2.6316 0.0009 -31.604 2;
0 0 1 0 0 0;0 0 0 0 -30 0;0 0 0 0 0 -30];
B=[0 0;0 0;0 0;0 0;30 0;0 30];
C=[0 1 0 0 0 0;0 0 0 1 0 0];
%%%%%%%%%%%%%%%System-bar Parameter%%%%%%%
ZeSix=[0 0;0 0;0 0;0 0;0 0;0 0];
ZeTwo=[0 0 0 0 0 0;0 0 0 0 0 0];
ZeEight=[0 0;0 0;0 0;0 0;0 0;0 0;0 0;0 0];
%%%%%%%%%%%%%%%%%%%%%%
Abar=[A,ZeSix;C,zeros(2)];
Bbar=[B;zeros(2)];
Cbar=[C,zeros(2);ZeTwo,eye(2);(C*A),zeros(2)];
Gbar=Bbar*Bbar';
%%%%%%%%%%%%%%%RiCCAti%%%%%%%%%%%%%%%%%%%%
Q=eye(8);
[P,L,Gg] = care(Abar,Bbar,Q)
EigenValueOfP = eig(P)
%%%%%%%%%%%%%%%LMI-Constrins%%%%%%%%%%%%%%
cvx_begin sdp
variable X(8,8);
variable Fbar(2,6);
variable Alphaa;
minimize Alphaa;
subject to
[(Abar'*P)+(P*Abar)-(X'*Gbar*X)-(Alphaa.*P),((Bbar'*P)+(Fbar*Cbar))', (X'*Bbar); (Bbar'*P)+(Fbar*Cbar) , -eye(8) ,ZeEight; Bbar'*X , ZeEight' ; eye(2)] <= zeros(12);
cvx_end
```

but i faced with this error:

Error using * (line 126)

Disciplined convex programming error:

Only scalar quadratic forms can be specified in CVX

.

Error in riccati (line 36)

[(Abar’*P)+(P*Abar)-(X’*Gbar*X)-(Alphaa.*P),((Bbar’*P)+(Fbar*Cbar))’, (X’*Bbar); (Bbar’*P)+(Fbar*Cbar) , -eye(8)

,ZeEight; Bbar’*X , ZeEight’ ; eye(2)] <= zeros(12);