The Blue Flag (aka WO (World)) is the natural fallback I coded for this extension when happens the IP lookup server isn't able to give us the correct IP for a lot of matters, server outage, server IP Banned, unknown IP, reserved IPs etc.
I am experiencing the same issue on my environments. The new version it's in the pipeline, will be ready soon. I am changing the lookup server because this one is very limited and unusable I can say.
If you want you can see if your server IP has been banned and UnBan it (usually happens when there are over 150 requests per minute). See http://ip-api.com/docs/unban
, you'll be asked for your server's IP, if you don't know and want to be sure please read this viewtopic.php?p=14616216#p14616216