there are new breakers out on the market ,that will fit your panel.but they cost a lot of money,still my be cheaper then replacing your panel.This quick swap of breaker will make ur panel safe. as far as ur ground . check the main cold water line coming into ur house .[in some areas of the country that were ur ground is connected,or by ur electric meter.and it can be both place ] BE CAREFULL IF THERES A LOAD ON THE GROUND IT CAN ZAP U.... NEVER DISCONNECT UR GROUND WITHOUT JUMPING IT OUT [clamp on a wire of the same size ,above the conection that might be broken and clamp it on too the cold water pipe or ground rod. by doing this u will fix ur grounding problem if any ..

I JUST THINK UR BREAKERS ARE MARKED INCORRECTLY,THAT WHY HE GOT Zaped

ENJOY UR NEYEAR EVER ONE