Hey! Super happy to hear you're enjoying it and want to push through despite the bug.
We have had this bug a few times and it seems to be browser-related but we couldn't fix it before the deadline :(. Very sorry about this!SPOILER: To help you get unstuck
In order to use the exorcism kit you’ll first need to find out who the culprit is. There is a specific other object that needs to be given to the culprit in order to find them out. Let me know if that helps and happy to give more details if needed. Focus on this first and disregard the exorcism ingredients for now. Once you found the culprit, focus solely on the exorcism list.
Thanks again for the praise and for reporting the bug!