Shen Jiang'an Quest The Great Yonder issue

ok so I stumbled upon the kids and the guy looking for the weeding drees and didn't accept to join their gang because I thought it could be harmful, I just proceeded until the palace without doing any boss or anything that could stop me from accepting to join later. Now I decided to go back and accept but Shen is crying, a kid is missing and the guy that wanted the wedding dress disappeared... wtf happened?