the result of converting geoip aren't loaded for some geoip

[Malik Al]

i am trying to use custom geo converted with v2box, i want to use geoip telegram and geoip doh but the log from sing-box won't load it.

+0700 2023-04-29 16:29:14 INFO router: loaded geoip database: 0 codes
+0700 2023-04-29 16:29:14 INFO router: loaded geosite database: 1403 codes

i have try sing-box-geo it's load normally i guess, but geoip doh somehow aren't works for blocking lists IP address DoH/DoQ

+0700 2023-04-29 16:31:20 INFO router: loaded geoip database: 261 codes
+0700 2023-04-29 16:31:24 INFO router: loaded geosite database: 1403 codes

does sing-box support only 2 letter country code + private?