core/homeassistant/components/mullvad/translations/en.json

{
    "config": {
        "abort": {
            "already_configured": "Device is already configured"
        },
        "error": {
            "cannot_connect": "Failed to connect",
            "unknown": "Unexpected error"
        },
        "step": {
            "user": {
                "description": "Set up the Mullvad VPN integration?"
            }
        }
    }
}