If you enable all the modules fresh, and only enable the Subscribe OG flag the view doesn't work. As far as I can see it looks at the relationship on the subscribe_node view but that relationship points at the subscribe_node flag, rather than the subscribe_og one. I'm not sure how this was intended to work.
I've formatted a patch which adds in a new Subscribe OG view. I've also marked all the views as disabled initially, it will enable them automatically if they are used.
I fixed a few typos and coding standards errors too.
Closed: outdated
Code
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.