Missing Registration, Activation, Repair pages

I'm using the Fixer theme with WPMUDev and Buddypress. Originally I had registration disabled but I since enabled it, deleted buddypress and reinstalled it. It still tells me those pages are missing.

I even went and downloaded buddypress manually and copied the registration folder into the /bp-default/ theme (since they say a lot of buddypress stuff pulls from there) but still no luck. Is there a default registration and activation file I can grab from somewhere and then just upload into the fixer theme?