so if the outlets work for charging, are you referring to 110v standard ac outlets?
if so, its because you are plugged in to shore power, the don't work just from
battery.
If you have cigarette lighter power ports, they were added after the factory, the
lighting circuit may have a blown fuse, it would depend on the type of converter you have if the interior bulbs are definitely 12v bulbs, check the front of your power center and see if the pop-out circuit breaker is tripped, push it back in to reset, send us a picture of your power center, and we can give more precise info.
Joe