2012 Prius seeking guidance re post repair codes

I have a 2012 Prius (230,000 miles) that had a bunch of codes including hybrid system...pull over in a safe place and coolant pump codes. I replaced the coolant pump (old one had a fractured impeller). I replaced coolant. When it would not start, I had the starter battery checked and it was bad so I replaced it. It started and ran fine for a few hours. I drove it a couple of miles. Soon after this, the hybrid system light came back on, engine light, Red triangle. It would still drive but I did not want to chance it. I rechecked codes and it had Po455/P2618, P0A80 and Pob3d.
I don't know what to do at this point. The General Evap System codes I can probably figure out. Funny that none of those came on before and I did not touch the eval system during the previous repairs. The coolant pump B control circuit perf stuck is one ZI'm not sure about.
Replace hybrid/ev Batt pack and hybrid/ev battery voltage sense A circuit low......What do these mean? Do they really mean the battery pack needs replacement?

Any help on any of these would be great. Thanks