It's my understanding that an igniter is something th at works after the gas valve is open -- ignites the gas.
Makes me wonder if one of the pilot lights has blown out. I'd suggest you look under the range drip pans, and also under the bottom pan of the oven.
I've got an old range and oven, sometimes one of the two pilots for the range blows out. I've got to lift the cooktop, and touch a match or lighter to it, to get it relit.
I'm not there to beep it, but that's my first guess. Gas smell is never a good thing -- needs to be fixed promply somehow. If it isn't a pilot out, might be a leaky connection some where. Then, you might consider calling an appliance guy who has a gas detector beeper to find the leak.
Let us know how it works out.