In order to view your site visitors on the map, you should download the geolocation database file from MaxMind.
You can do this manually or automatically using the "Download" button.

Note: The file size is about 30Mb

File is not writable.
Please update the file permissions (typically 0777 helps), or download manually.
# Info IP User Page Timestamp Visit duration Visit pages

The table content refreshes automatically every seconds.