It might be an error with the API and Geo Controller can’t display information by own.
Look inside Geo Controller for all available shortcodes and settings,
Look inside Geo Controller->Debug Mode where is error and also you can test with some other IP address to see if problem is inside plugin, API or server.
Look inside Geo Controller->Settings and enable/disable and check all options (SSL, proxy, etc),
Some people use a special software to hide IP address via proxy and geoplugin can’t look deeper to get accurate location,
Look into error.log file to see if a problem is in Geo Controller
Some servers not allow access to API and maby you need to use proxy setings inside plugin to enable tracking