BuddyPress.org

@sb0n 1. BuddyPress is not activated per my check of your site.
2. See instruction above:
Copy the style modifications made in BP Twenty Ten at https://codex.buddypress.org/theme-development/theme-dev-bp-template-pack-walkthrough-twenty-ten-bp-1-5/3/ and paste to your theme’s stylesheet. Adjust to taste.
– I may have missed it but I didn’t see the copy of the style mods in your stylesheet.