Airbag light and interior light not working properly?

So my airbag light on my dash came on driving down the road. It was during the day, and my airbag light that your turn with your key (to turn on and off the passenger bag) was off.
Then the next evening my interior light wouldn’t come on.
Few days later the three seem to be hooked together. When the dash airbag light is on, my interior light won’t work. That’s been the only issue I’ve noticed so far.