There you need to look at one or both statues on the middle deck of the ship.
might help to add sparkles on the Demon Statue, witch is the one that need's to be interacted with, just so people don't get stuck on not finding what they need's to do in camp before being able to progressing the story.
I think just remove the condition check for these statues, the content related to them is additional, hehe ))
I can't progress the story despite having examined all the Points of Interest. The option seems to be broken.