What's the prefix for mute - discord

Question

Problems with my bot. Can't get mute to work. Help? Can't find any prefix and don't know where to add it or how to format it. I linked most of code below. Anti-spam and kick/ban works. New to coding to any help would be nice. Tips how set a general prefix for all code foward? Role is named mute and bot has all premissons it shall need to kick
const fs = require('fs');
module.exports = class mute {
constructor(){
this.name = 'mute',
this.alias = ['tempmute'],
this.usage = 'mute';
}
run(bot, message, args){
let member = message.mentions.members.first();
var command = args[0];
var mentioned = args[1];
var days = parseInt(args[3]);
var hours = parseInt(args[4]);
var seconds = parseInt(args[5]);
if (message.member.hasPermission('MANAGE_ROLES')) {
let muterole = message.guild.roles.find(role => role.name === "Muted");
if (!message.guild) {
if (message.guild.id === '505872328538718233') {
let memberrole = message.guild.roles.find("name", "Member");
member.removeRole(memberrole);
}}
let usermsg = new Discord.RichEmbed();
usermsg.setTitle('You have been Muted.');
usermsg.setColor('76b3fc');
usermsg.setFooter('Please do not attempt to bypass');
usermsg.addField('Muted by:',
`<#${message.author.id}>`);
let mutedmsg = new Discord.RichEmbed();
mutedmsg.setTitle('User has been Muted Successfully');
mutedmsg.setColor('76b3fc');
mutedmsg.setDescription(`User muted: ${mentioned}\nMuted by: <#${message.author.id}>\nReason: ${input}`);
mutedmsg.setFooter('This mute has been logged.');
if (message.content === `${command}`) {
return message.channel.send('You did not provide a member to mute.');
}
if (message.content === `${command} ${mentioned}`) {
return message.channel.send('Please input a reason for the mute.');
}
if (message.guild.roles.find(role => role.name)) {
message.member.addRole(muterole);
if (message.content.includes (`${days}d`)) {
message.channel.send(mutedmsg);
setTimeout(() => {
member.removeRole(muterole);
usermsg.addField('Punishment Time:',
`${hours} Seconds`);
}, `${args[2]} * 86400`);
}
if (message.content.includes (`${hours}h`)) {
message.channel.send(mutedmsg);
setTimeout(() => {
member.removeRole(muterole);
usermsg.addField('Punishment Time:',
`${hours} Seconds`);
}, `${args[3]} * 3600`);
}
if (message.content.includes (`${seconds}s`)) {
message.channel.send(mutedmsg);
setTimeout(() => {
member.removeRole(muterole);
usermsg.addField('Punishment Time:',
`${seconds} Seconds`);
}, `${args[4]} * 1000`);
}
if (message.content === `${command} ${mentioned} ${input}`) {
message.member.addRole(muterole);
usermsg.addField('Muted for',
`${input}`);
usermsg.addField('Punishment Time:',
'Permenant');
message.channel.send(mutedmsg);
}
if (message.member.id === `${message.author.id}`) {
return;
}
if (message.author.id === `${mentioned}`) {
return message.member.send(usermsg);
}
message.channel.send(mutedmsg);
console.log('===========================');
console.log(`Member Muted: ${mentioned}`);
console.log(`Muted by: ${message.author.tag}`);
console.log(`Reason: ${input}`);
console.log('===========================');
} else {
message.channel.send('You do not have a `Muted` Role, This command won\'t work.');
}
} else {
message.reply('You do not have permission to do this.');
}
let jsonlogs = JSON.parse(fs.writeFileSync("./storages/mutelogs.json"));
if (!jsonlogs[message.guild.id]){
jsonlogs[message.guild.id] = {
mutedby: `${message.author.tag}`,
user: `${mentioned}`,
reason: `${input}`,
days: `${days}`,
hours: `${hours}`,
seconds: `${seconds}`,
};
}
}
};

Answer 1

You seem to have a lot, and I mean A LOT of outdated methods from Discord.js v11.
I'd highly recommend installing the newest version of DJS and reading all of the v12 changes that can be found here:
https://github.com/discordjs/discord.js/releases/tag/12.0.0
Some examples:
Discord.RichEmbed() no longer exists -> Use Discord.MessageEmbed()
.addRole() no longer exists -> Use message.member.roles.add()
.removeRole() no longer exists -> Use message.member.roles.remove()