Electrostatic Potential Calculation

Dear, All

Hi let me introduce my self, I'm Amin master student in NPUST Taiwan. Let me share my problem, I have 26 peptide conformations and I would calculate its electrostatic potential energy, but I have a problem when I used that application.

I'm using CHARMm, connected to DS. But one of the menu could not work, I'm wondering, what the problem are,
In this time I enclosed the power point problem...

I really need help for that case.

Thanks...