1, look up some information about superstitious explanations on the Internet.
2, you can let the woman's parents solve it, just make it clear, and don't let the woman's parents think that you have no ability to solve the problem.
3, you can show your parents cases of accidents caused by superstition.
As the saying goes, I can only rely on my family and friends outside to help you here. I wish you success, come on.