When this happened the last time we did shut of the breaker for a while and then overnight. Did not help. Mary Anne found an item on the internet where someone took the back off and tigthened the connections from the wall plug. Last time  we pulled the plug and reset it in the wall. That worked. This time we may have to take  the back off and check the connections. 

If this is a gas stove, try replacing the igniter in the oven - that's a problem we encountered in the past - same symptoms. If it's electric no idea.