Hello, I´m trying to model a problem in AMPL with Baron;

But when I run the model, this is the result

BARON 23.3.11 (2023.03.11):

Could not find “”.

Could not find “”.

0 iterations, optimal within tolerances.

Objective 0

Any idea why this is happen?

Here is the code of the problem

set pol; #Objetos

set ver =1…4; #Vertices

param I:=3;

set vert{2…I} within ver;

param area {pol}>=0;

var r >=0;

var X {k in pol, j in ver};

var Y {k in pol, j in ver};

var A {k in pol, l in pol};

var B {l in pol, k in pol};

var Vx {k in pol, j in ver};

var Vy {k in pol, j in ver};

minimize obj: r;

#Objeto

s.t. Rad{k in pol, j in ver}: X[k,j]^2+Y[k,j]<=r^2;

s.t. la1{k in pol, j in 2…I}: ((X[k,j-1]-X[k,j])*(Y[k,j-1]-Y[k,j]))+((X[k,j]-X[k,j+1])*(Y[k,j]-Y[k,j+1]))=0;

s.t. la2{k in pol}: ((X[k,4]-X[k,3])*(Y[k,4]-Y[k,3]))+((X[k,1]-X[k,4])*(Y[k,1]-Y[k,4]))=0;

s.t. are{k in pol}:((X[k,4]-X[k,3])^2 + (Y[k,2]-Y[k,1])^2) * ((X[k,3]-X[k,2]^2) + (Y[k,3]-Y[k,2])^2)==area[k]**2;

Greetings