Maxmind pulled public access to the GeoLite2 databases as of Dec 31/2019. You can read about the changes here:
https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases/
For now you will have to register on the Maxmind site and setup a free license key:
Signup
https://www.maxmind.com/en/geolite2/signup
Create a free license key (When asked - Will this key be used for geoipupdate? Choose: no)
https://www.maxmind.com/en/accounts/current/license-key
Then in Juggernaut go to Settings -> Geolocation Settings -> enter the MaxMind license key option.