Welcome to the Forum!
First, the dumb question - you are not out of propane, are you? That is an easy, but not cheap fix ;D
Since you hear no gas coming out of the stove, I would start back at the tank. Disconnect the regulator at the tank and open the valve. Does gas come out? WELL VENTILATED AREA!!! If yes, reconnect regulator and go to the next fitting, maybe hose from regulator to the RV. Disconnect, turn on gas and see if you have gas there. Continue until you find the blockage where you get no gas. You have at least narrowed the location of the problem to a much smaller area.
Off the wall... When was the last time the stove / furnace worked? If it has been months with the gas disconnected, check the hose for mud dauber nests. I have had that issue :-\