I would be tempted to say it is the oven safety control.
Your over is actually a rebranded in the name of Frigidare.
Here is the parts page for the model number you posted.
Part Advantage :: Category Search
See Burner manifold and gas control section parts then item 5 for the price, then to parts catalogue image number 5 for the location of the part.
This is a expensive part and I cannot look at it or test it for you from here so I recommend that you might consider calling for On Site Service and let them do the repair.
Then to