Particle Swarm Optimization

[matthews eivor]

Hello, I am new in genetic algorithm and PSO, I wish to apply a PSO algorithm to the PI controller of the DC Link of my shunt active power filter, however my program runs in a loop without stopping (even by reducing the number of iterations it continues to loop) displaying error messages, errors that I cannot correct.
Could any one check my program, because I'm really stuck and I can't find a solution.

Attached the rar file containing the SHAPF file and the PSO program.