Fridge does not come on.

The fridg requires DC 12V to operate. Everything is controlled using 12V circuits, even when plugged into 120V or running on gas.

You said "it's all off". I take that to mean there is no display or light on the control panel. If the light inside comes on, you have 12V power getting to the fridg.

On my Norcold there are 2 fuses on the control board under the plastic cover. One is for the 120V heating element and wouldn't stop it from working on gas. All are similar but not necessarily the same.

If you aren't tech savvy, you are probably going to need to take it to a rv repair tech. They may not get to it for a while.

I've had issues in the past where we just bought bags of ice and made it into an ice box for the rest of the trip. It won't keep it frozen but it will keep your food cold. A bit of a pain but usable.

Unfortunately I am not.
The lights on top of the fridge are not on. They were on earlier today. Where would I find those fuses? I checked the general fuses.

Are you handy with the multimeter? Also I should have suggested to make sure you checked the fuses on the reefer's circuit board. Do the Indicator lights go on at the top of the refrigerator?

Microwave works, Gas does not work.

When you say everything else works did you try something like the AC or microwave that works on AC? Use a multimeter and check for 12 Volts at the main wire to the reefer and at the circuit board. Then check the wire to the AC heating element for 120 Volts AC. Try the refrigerator on gas, make sure you get a flame.