Moderation bot code

client.on('message', message => {
    if(message.content.startsWith(`${prefix}mute`)) {
        if(message.member.hasPermission("ADMINISTRATOR")) {
    let role = message.guild.roles.find(r => r.name === "Muted");
    let member = message.mentions.members.first();
    if(member) {
        member.removeRoles(member.roles)
        member.addRole(role).catch(console.error);
        message.channel.send(`${member} has been muted!`)
} else {
    message.channel.send("You need to mention a user!")
}
} else {
    message.channel.send("You are not a high enough rank!")
}
}
});
client.on('message', message => {
    if(message.content.startsWith(`${prefix}unmute`)) {
        if(message.member.hasPermission("ADMINISTRATOR")) {
    let member = message.mentions.members.first();
    let role = message.guild.roles.find(r => r.name === "Muted");
    if(member) {
    member.removeRole(role).catch(console.error);
    message.channel.send(`${member} has been unmuted!`)
    } else {
        message.channel.send('You need to mention a user!')
    }
    } else {
        message.channel.send("You are not a high enough rank.")
    }
}
});
client.on('message', message => {
   if(message.content.startsWith(`${prefix}kick`)) {
       if(message.member.hasPermission("KICK_MEMBERS")) {
    let member = message.mentions.members.first();
    if(member) {
        member.kick('Optional reason for the audit logs').then(() => {
            message.channel.send(`Successfully kicked ${member}`);
          }).catch(err => {
            message.channel.send('I was unable to kick the user. Please check my permmisions.');
            console.error(err);
          });
    } else {
        message.channel.send("You need to mention a user!")
    }
}
   }
});
client.on('message', message => {
    if(message.content.startsWith(`${prefix}ban`)) {
        if(message.member.hasPermission("BAN_MEMBERS")) {
     let member = message.mentions.members.first();
     if(member) {
         member.ban('Optional reason for the audit logs').then(() => {
             message.channel.send(`Successfully banned ${member}`);
           }).catch(err => {
             message.channel.send('I was unable to ban the user. Please check my permmisions.');
             console.error(err);
           });
     } else {
         message.channel.send("You need to mention a user!")
     }
 }
    }
 });