A Swig of Hope - Captain Fairgraves

Hi,

I was completing my quest, A Swig of Hope, which was about delivering the Decanter Spiritus and Chitus' Plum to Fairgraves. I had those items and was talking to Fairgraves to complete my quest. However, I was disturbed by some mobs and I closed my quest window without getting my quest reward. Now Fairgraves isn't interactable anymore and I can't talk to him, meaning that I can not get my quest reward and continue my quest, A Swig of Hope.

On my quest window, it says that I have completed the quest and delivered the items.
How do I resolve this problem?

I hope you would fix this bug. Thanks in advance.

Just uploading the screenshot

Have you tried creating a new area instance? I'd recommend doing that, then looking in his text for the reward option, since the quest page shows the reward as untaken.