The banner_statistics.php file isn't registered automatically in Admin Profiles.

To remedy, I created a file in YOUR_ADMIN/includes/languages/english/extra_definitions/banner_statistics.php with the following content:

PHP Code:
<?php
define('BOX_BANNER_STATISTICS', 'Banner Statistics');
Then I registered the page using the following: http://awesomescreenshot.com/0395d91639