oven has stopped working? ADP5520?

hello,my oven has stopped working,when i went to switch it on it tripped the breaker,i switched the breaker back on and everything else is working,grill,small oven even the grill and fan in the main oven are working.the breaker isnt tripping anymore but the oven just isnt getting hot.This really isnt good as i am running a B+B and had hungry guests this morning while i cooked things other ways.Would really appreciate some help.Is there another heater element behind the fan at the back of the oven or does it just use the same element thats for the grill?