if you added the polarization in physics section you need to add these parameters in plot and current plot section

1).Add these two parameters in the plot section

Plot

{

Polarization/Vector

ElectricField/Vector

}

2).and for current plot, add these two

CurrentPlot {

Polarization/Vector(Average(Material="InsulatorX"))

ElectricField/Vector(Average(Material="InsulatorX"))

ElectrostaticPotential(Average(Material="InsulatorX"))

}