He do u add ur gender if u haven't when u set up?

Bottom left of your 프로필 info is an 편집 프로필 button.

Click on "Edit Profile" then at the 상단, 맨 위로 it will say 1. Personal Information it's the 7th line down 당신 can't miss it.
It says Gender, 당신 can click on it and choose Male 또는 Female.
If 당신 already figured it out, never mind. Maybe this will help someone else :-) take care!