BuddyPress.org

I am trying to edit my BuddyPress User Profile Fields at https://christiangays.com. Whenever I click to Edit a field, I get “Sorry, you are not allowed to access this page.”

I have logged out and logged in again.
I have changed themes.
I have done a plugin conflict test with regular plugins and mu-plugins
I have removed my .htaccess file.
I have disabled my functions.php file in child theme.
debug.log does not show any errors.
WMPU has looked at it and not been able to find a cause.

Can you suggest what I could try next please.

I am using WP v4.7.3 but the problem existed on v4.7.2 as well.
I am using BP v2.8.2