Members Count (JS)

let membersjson = JSON.parse(fs.readFileSync('membersjson.json', 'utf8'))
client.on('message', message => {
if(message.content.startsWith(prefix + "settings membuercount")) {
let channel = message.content.split(" ").slice(1).join(" ")
let channelfind = message.guild.channels.find('name', `${channel}`)
if(!channel) return message.channel.send('اكتب اسم الروم مثل: !settings membuercount <Channel name>')
if(!channelfind) return message.channel.send('اكتب اسم الروم مثل:!settings membuercount <Channel name>')
membersjson[message.guild.id] = {
stats: 'enable',
chid: channelfind.id,
guild: message.guild.id
}
message.channel.send('**Done The members counter  Is Turned On**')
}
if(message.content.startsWith(prefix + "settings membuercount ff")) {
membersjson[message.guild.id] = {
stats: 'disable',
chid: ch.id,
guild: message.guild.id
}
message.channel.send('**Done The members counter Is Turned Off**')

}
fs.writeFile("./membersjson.json", JSON.stringify(membersjson), (err) => {
if (err) console.error(err)
})
})

client.on('voiceStateUpdate', (oldMember , newMember) => {
    if(!membersjson[oldMember.guild.id]) membersjson[oldMember.guild.id] = {
        stats: 'disable',
        chid: 'undefined',
        guild: 'undefined'
    }
            if (membersjson[oldMember.guild.id].stats === 'enable') {
                let ch = membersjson[oldMember.guild.id].chid
                let channel = oldMember.guild.channels.get(ch)
                let guildid = membersjson[oldMember.guild.id].guild
                channel.setName(`Members Count [${oldMember.guild.memberCount}]`)
            };
            if (membersjson[oldMember.guild.id].stats === 'disable') {
            return;
            }
});