تعديل بسيط جدآ

client.on('message', message =>{

if(message.content.startsWith(prefix + `roles`)) {
	     const nos = new Discord.RichEmbed()
     .setDescription("**:x: | هذا الأمر فقط للسيرفرات**")
     .setColor(000000)
     .setAuthor(`${message.author.tag}`, message.author.avatarURL)
     .setFooter(`Requested By ${message.author.username}` , message.author.avatarURL)
     .setTimestamp();
  if(!message.channel.guild) return message.channel.send(nos).then(m => m.delete(5000));
let perms = message.member.hasPermission(`ADMINISTRATOR`)
  const nopermission = new Discord.RichEmbed()
     .setDescription("**:x: | ADMINISTRATOR للأسف لا ... تمتلك صلاحية**")
     .setColor(000000)
     .setAuthor(`${message.author.tag}`, message.author.avatarURL)
     .setFooter(`Requested By ${message.author.username}` , message.author.avatarURL)
     .setTimestamp();
if(!perms) return message.channel.send(nopermission)
        var
        ros=message.guild.roles.size,
        data = [['Rank', 'RoleName']]
        for(let i =0;i<ros;i++){
            if(message.guild.roles.array()[i].id !== message.guild.id){
         data.push([i,`${message.guild.roles.filter(r => r.position == ros-i).map(r=>r.name)}`])
        }}
        let res = AsciiTable.table(data)

        message.channel.send(`**\`\`\`xl\n${res}\`\`\`**`);
    }
});