Geo IP?
osTicket has never in my time of using it used Geo IP.
GeoIP
http://php.net/manual/en/book.geoip.php
osTicket can and has logged the IP address of the where the traffic came from (email, web, etc) which is displayed on the ticket. Top of the ticket right hand column third item down labelled Source.
Are you using a custom theme or have you modded osTicket in anyway?
Have you tried switching to English to see if it shows up.