Hello, friend!
You can ask Simen for hint, but there is a guide:
http://d.zaix.ru/A68Y.pdf
So, the guide only seems to confirm that I did what I was supposed to, and yet it's not working, she says I don't have any of the ingredients. You can see in the image above they're in my inventory.
Have you tried collecting all the ingredients again by strictly following the guide?
