Gas appears to shut off while traveling

[SRD]

While traveling our fridge shut down on gas. Just to trouble shoot I tried to light the gas stove. It would not light. When we set up in the campsite the stove and fridge work fine. When I go to just gas while in the camp site both work fine on gas. It's shut down two times now just while traveling. I try to light the stove in the rest stop to check and the stove will not light. Any thoughts?
Thanks
Steve