Please create a page first and then use following shortcode for displaying user profile.
[user_profile]
Arguments:
No arguments for this shortcode.
This shortcode has support parameter on url $_GET['id']
so any user profile can be accessed by providing user id via url parameter. ex: http://pickplugins.com/demo/user-profile/?id=48
you also need to see the page on settings page.
User Profile Settings > User profile page > Select page you are using for user profile