Again you've got to fix the DC problem first, ie the light problem. Many controllers use DC including A/Cs and won't operate without DC. The outlets indicate they are now on the 30A CB as expected.
I suspect that someone has changed/modified your rig wiring/equipment beyond what you've just found. Given what you've posted it's strange that you have lights except when a gen CB is tripped. Also the gen should continue to run with CBs tripped.
Double check: The lights are OK w/o gen or shore power indicating at least some battery power, correct?
Given what you've posted I'm not surprised that you haven't gotten "straight answers".