This message appears when a user during the last 7 days have changed country to login either by using proxies or VPN or by moving to another country for real. The first two are against Terms of Service of Neobux and may lead to account suspension.
In order to cashout you have to login for 7 consecutive days from the same country.
Also hotspot shield or other similar services are using proxies, so don’t use them with Neobux if you do. Opera browser when Turbo mode is enabled is using proxy servers. Some mobile operators also use proxies which are not allowed on NeoBux.
You can check your login sessions here