BuddyPress.org

If you are not using custom themes yet, just delete everything and start from scratch with RC-2. By the looks of it, you don’t have much data yet.

Follow the install instructions step by step and you will be fine:

https://codex.buddypress.org/getting-started/installing-buddypress/

Also, please don’t use “buddypress” in your domain name. When we get a hosting page set up on this site, we can’t link to your site if it breaks the domain policy.