You have two profiles, on the Player and Host tabs of Profile. They're separate, so updating one doesn't change the other.
Why it matters: it's what players see when they book. A clear photo of your face and a short bio make it much easier for players to find you at the facility.
What to write: who you are, how long you've played and what your games are like. A couple of sentences is plenty.
Changing your photo, display name or bio: go to Profile → Host → Edit Host Profile. Once your profile is verified, tap Request to edit profile and we'll review the change.
The option to host disappeared? You can only host in the cities and sports where you're a Host, so check you're looking at the right ones. Then close and reopen the app. Still missing? Message us with when you last hosted and the city you host in.