Excluded from Google index

My Rocket Chat installation seems to be excluded from Google’s index because it (according to them) contains a redirect. Since the chat is not open to anonymous users the only page to crawl is the login page, which Google excludes.

Has anyone else experienced this and how can it be solved? Could it be because the login page directs the user to /home even though the user isn’t logged in?

I would use my own login page. In that website you can also add pages with info about your chat website. That way you will be indexed fine. For Google there is not much to index at the moment.