some api calls returns 500 server error

[envergokmen]

when I try with 172.16.21.50, api returns server error. I think it is related to country. Because other services say it is EU but can't say country.

[grahambo2015]

I'm guessing that is probably due to that IP belonging to an RFC defined private IP range.
https://geek-university.com/ccna/private-ip-addresses/