Difference in Area Calculation for Nozzle in PVELITE

[SmallInfo]

Hi Experts,
I am redesigning a pressure vessel using same values as used in previous model but previously it was calculated on external but this time its calculating on design values. Why is this difference when recreating the same thing?
Thanks in Advance

 

[BZ29]

Please check your design parameters. There must be internal pressure/static head in above case, while the below case only have external pressure.

 

[SmallInfo]

BZ29
Thank you so much for your time and efforts, I just checked again all inputs but its same in both files, the problem is its not NA in all nozzles but in other it shows results with design inputs and all says "The Pressure Design option was Design Pressure + static head".
What could be the reason? Or do you suggest me some other inputs in report to be checked?