BuddyPress.org

That is pretty bizarre.

White screen errors can mean lots of things unfortunately. If it’s BuddyPress being active that’s causing it, it might be an out of memory or php/mysql version error?

Can you verify that you have all of the files in the correct locations? Were you ever able to get BuddyPress to activate successfully at all? Do you have any other plugins running that maybe are conflicting?