@client.command()
async def join(ctx, arg1):
    voice_ch.id = (arg1)
    voice_ch = ctx.guild.fetch_channel(channel.id)
    voice_ch.connect()

Ignoring exception in command join:
Traceback (most recent call last):
  File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "C:\Microsoft\Новая папка (3)\kreora\kreora (фикс крч).py", line 73, in join
    voice_ch.id = (arg1)
UnboundLocalError: local variable 'voice_ch' referenced before assignment

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\discord\ext\commands\bot.py", line 939, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\discord\ext\commands\core.py", line 863, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\discord\ext\commands\core.py", line 94, in wrapped
    raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: UnboundLocalError: local variable 'voice_ch' referenced before assignment