I installed BuddyPress Template Pack during setup.
During setup, I told BP to use an existing page for the forums. That page was deleted. :(
BP listed options to create new pages by default for members, activate and register. It did not do that. I created the pages and associations manually.
The forums are linked to /share. However, when I go to that page now, I get taken to the home page instead. If I unlink it from BP, I can access it.