Your not banned. The server is just picking up that you are using a vpn which is a thing that just makes a unique ip and can make it look like your in another place (like a different country) than you actually are (i believe). You might need to provide a picture of this message coming up so a staff member can help you get situated.
Hello Can you please provide a full screenshot of the message and your in-game name for a senior moderator to whitelist you?