if (msg.member.hasPermission("KICK_MEMBERS")) {
    if (msg.members.mentions.first()) {
        try {
            msg.members.mentions.first().kick();
        } catch {
            msg.reply("I do not have permissions to kick " + msg.members.mentions.first());
        }
    } else {
        msg.reply("You do not have permissions to kick " + msg.members.mentions.first());
    }
}