this plugin has no settings page. You have to create a config-file in
(you have to create the folder buddypress-private-community-config). Please read the documentation and FAQ how to configure the plugin. There are a number of various ways how to handle users which aren't authenticated and what to do next.
In the above mentioned configuration file, I use only the following statements:
List of allowed URIs (all others are blocked, adapt this to your site):
MM_BUDDYPRESS_PRIVATE_COMMUNITY::$ALLOWED_URIS = Array('/contacts', '/about', '/welcome');
redirect blocked users to starting page:
MM_BUDDYPRESS_PRIVATE_COMMUNITY::$REDIRECT_TO_URL = site_url() . '';
and this for redirecting users which authenticated:
MM_BUDDYPRESS_PRIVATE_COMMUNITY::$REDIRECT_HOOK = 'my_redir_to';
the plugin has a sample config file which gives you some examples.