recipes problem

Hi, (I hope I'm opening in the right place),
I was wondering if any of you know what the rdf file is that controls the purchase of recipes, let me explain,
I'm using a local host server to test various things and I noticed that when I try to buy a recipe from any recipe npc the game crashes instantly ,
(with other merchants there are no problems)
I sincerely hope that someone can help me thank you very much.