Самодельный бот раздора не работает/ Ошибка атрибута: объект «VoiceState» не имеет атрибута «голос»

#python

Вопрос:

MAIN.PY

 import discord
from discord.ext import commands
import music

cogs = [music]

client = commands.Bot(command_prefix='?', intents=discord.Intents.all())

for i in range(len(cogs)):
    cogs[i].setup(client)

client.run(" ### BOT TOKEN HIDDEN IN POST ")
 

MUSIC.PY

 import discord
from discord.ext import commands
import youtube_dl

class music(commands.Cog):
    def __init__(self, client):
        self.client = client

    @commands.command()
    async def join(self, ctx):
        if ctx.author.voice is None:
            await ctx.send("No one is here... > :) ")
        voice_channel = ctx.author.voice.voice.channel
        if ctx.voice_client is None:
            await voice_channel.connect()
        else:
            await ctx.voice_client.move_to(voice_channel)

    @commands.command()
    async def disconnect(self, ctx):
        await ctx.voice_client.disconnect()

    @commands.command()
    async def play(self,ctx, url):
        ctx.voice_client.stop()
        FFMPEG_OPTIONS = {
            'before_options':
            '-reconnect 1 -reconnect_streammed 1 -reconnect_delay_max 5',
            'options': '-vn'
        }
        YDL_OPTIONS = {'format':"bestaudio"}
        vc = ctx.voice_client

        with youtube_dl.YoutubeDL(YDL_OPTIONS) as ydl:
            info = ydl.extract_info(url, download=False)
            url2 = info['formats'][0]['url']
            source = await discord.FFmpegOpusAudio.from_probe(url2, **FFMPEG_OPTIONS)
            vc.play(source)

    @commands.command()
    async def pause(self, ctx):
        await ctx.voice_client.pause()
        await ctx.send("PAUSED // PAUSED // PAUSED")

    @commands.command()
    async def resume(self, ctx):
        await ctx.voice_client.resume()
        await ctx.send("RESUME // RESUME // RESUME")


def setup(client):
    client.add_cog(music(client))