It's a little hard to follow bit if I understand it right, you are still stuck?
If so, you could upload your save file so i can take a look at it if you like. A possible site for this if you wnat to share your save file: https://ufile.io/
Otherwise it might be a bit hard to give advice if I don't exactly know where or how you are stuck. Or if you don't ant that senmding screenshots of what text you get from the fairy and cauldron as well as quest journal. might help me to see wher you are stuck.
And thanks! Glad to hear you enjoying your time with my game^^