I also ask about how I can produce bread on the kingdom's administration map, I can not get the farms to produce the material to produce the bread, and I do not know how they think anyone can help it, just to finish the vampire quest

Have you set your mill to produce flour but it's not increasing? Do you have enough wheat for the production?
Someone else told me about having issues to produce flour. I'll take another look at it.

But I think you're confusing the bread on the overview map for your country and the bread item you can have in your inventory. You can for example buy those at the Bitterroot farm in the south of Central.