I installed the plugin. That went fine. The admin page works also, and I see the link for "Album" under the user profile. When I click it, I get a page not found error, and then get redirected to the homepage.
Not sure if this is pertinent, but I also get a page not found error when editing groups, with a redirect that takes me to the correct page. I have posted on this elsewhere, no solution yet, unsure if the two issues are related.