NPCs won't cook

I've build a gratitude point farm where I would put moreberrys and rice in a chest in a cocking room. The NPCs would cook finest fruit pie and eat it and give up to 12 gratitude points. Everything was working but then one day they didn't cook at all. I destroyed every other room so the only activity to do was cooking but they still didn't. Then I sent every npc into another region and only left the NPCs "Esther" from chapter 3 but she still refused to cook. I don't know how to fix this. Please help me 🥲