K you are most likely stuck and a dev has to look at your data. But I can think about two more things you might try before having no other option left than wait:
- Go back to the girl in the cave of the desert where you got the “Ghouls” quest from and wave at her. Even if she doesn’t show a quest icon. (the cave with all the doors)
- Go to Helga at the Lamafora Frontier and check if you can get the Chudkated quest from here. Also try the waving when no icon present. But first check if you already got a normal quest from Helga instead of a main quest. Do that one first.
And if you want to be 100% sure not another quest is blocking your progress (very unlikely, except for the Helga quests), than try finishing all the normal quests you still got left in your book BEFORE doing the actions I told above.