How to use only 1 webhook discord.js

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Javascript

Node.js

Every time a user send messages a webhook edits its name and shows message.author.username but after After some time maybe because of an error the webhook creates 2 or more webhooks and keeps showing message author names.

How to use only 1 webhook?

let webhook = await client.channels.cache.get(smchannel[i]).fetchWebhooks();
webhook = webhook.find(x => x.name === message.member.nickname ? message.member.nickname : message.author.username);
        
      
webhook = await client.channels.cache.get(smchannel[i]).createWebhook('Chat Guy', {
            
avatar: client.user.displayAvatarURL({ dynamic: true })});
        
        
await webhook.edit({
name: message.member.nickname ? message.member.nickname : message.author.username,
avatar: message.author.displayAvatarURL({ dynamic: true })})

webhook.send( content ).catch(err => { })

    }
});

What I have tried:

I have tried everything but still facing same problem, how to use only 1 webhook?