Why do I have output offsets using AD8676 ?

Forgive me for unlearned question.  I am retread from software discipline and new to hardware.

This is a simple scheme to create a high voltage measurement and give analog output to other equipment.

With HV lead open, no voltage applied, I get .160 volts from pin 1 and .125 volts from pin 7.

Two different voltage gradients are desired.  But outputs must be 0 when there is no HV.

Thanks in advance to anyone who can help me.

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