Error using reshape To RESHAPE the number of elements must not change

Today, I come cross the following problem.

Can you help me to solve it?

[xi*delta_r_1*eye(Nt*(Nt+1))  [vec(sqrtm(G1)*((1-(2^R)*z)*Si_1-(2^R)*z*W_1)*sqrtm(G1)) sqrt(2)*sqrtm(G1)*((1-(2^R)*z)*Si_1-(2^R)*z*W_1)*g_1];   
[vec(sqrtm(G1)*((1-(2^R)*z)*Si_1-(2^R)*z*W_1)*sqrtm(G1)) sqrt(2)*sqrtm(G1)*((1-(2^R)*z)*Si_1-(2^R)*z*W_1)*g_1]' xi*delta_r_1]>=0;

CVX return:

Error using reshape
To RESHAPE the number of elements must not change.

Error in cvx/cat (line 102)
yb = reshape( yb, nz, psz );

I do not know how to solve it. Can you help me