# Buggy code
async def disconnect(self, ctx: commands.Context):
    """Disconnect from the voice channel."""
    if not self._player_check(ctx):
        return await self._embed_msg(ctx, _("Nothing playing."))
    else:
        dj_enabled = await self.config.guild(ctx.guild).dj_enabled()
        player = lavalink.get_player(ctx.guild.id)

        if dj_enabled:
            if not await self._can_instaskip(ctx, ctx.author):
                return await self._embed_msg(
                    ctx, _("You need the DJ role to disconnect.")
                )
        if not await self._can_instaskip(ctx, ctx.author) and not await self._is_alone(
            ctx
        ):
            return await self._embed_msg(
                ctx, _("There are other people listening to music.")
            )
        else:
            await self._embed_msg(ctx, _("Disconnecting..."))
            self.bot.dispatch("red_audio_audio_disconnect", ctx.guild)
            self._play_lock(ctx, False)
            eq = player.fetch("eq")
            player.queue = []
            player.store("playing_song", None)
            if eq:
                await self.config.custom("EQUALIZER", ctx.guild.id).eq_bands.set(
                    eq.bands
                )
            await player.stop()
            await player.disconnect()


# Traceback (RuntimeError)
Traceback (most recent call last):
File "/home/martinebots/martinebotsvenv/lib/python3.7/site-packages/discord/ext/commands/core.py", line 79, in wrapped
ret = await coro(*args, **kwargs)
File "/home/martinebots/martinebotscogs/cogs_modified/audio/audio.py", line 3183, in play
await self._enqueue_tracks(ctx, query)
File "/home/martinebots/martinebotscogs/cogs_modified/audio/audio.py", line 3885, in _enqueue_tracks
result, called_api = await self.music_cache.lavalink_query(ctx, player, query)
File "/home/martinebots/martinebotscogs/cogs_modified/audio/apis.py", line 911, in lavalink_query
results = await player.load_tracks(query)
File "/home/martinebots/martinebotsvenv/lib/python3.7/site-packages/lavalink/rest_api.py", line 300, in load_tracks
self.__check_node_ready()
File "/home/martinebots/martinebotsvenv/lib/python3.7/site-packages/lavalink/rest_api.py", line 268, in __check_node_ready
raise RuntimeError("Cannot execute REST request when node not ready.")
RuntimeError: Cannot execute REST request when node not ready.

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

Traceback (most recent call last):
File "/home/martinebots/martinebotsvenv/lib/python3.7/site-packages/discord/ext/commands/bot.py", line 863, in invoke
await ctx.command.invoke(ctx)
File "/home/martinebots/martinebotsvenv/lib/python3.7/site-packages/discord/ext/commands/core.py", line 728, in invoke
await injected(*ctx.args, **ctx.kwargs)
File "/home/martinebots/martinebotsvenv/lib/python3.7/site-packages/discord/ext/commands/core.py", line 88, in wrapped
raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: RuntimeError: Cannot execute REST request when node not ready.```

# Fixed code
async def disconnect(self, ctx: commands.Context):
    """Disconnect from the voice channel."""
    if not self._player_check(ctx):
        return await self._embed_msg(ctx, title=_("Nothing playing."))
    else:
        dj_enabled = self._dj_status_cache.setdefault(
            ctx.guild.id, await self.config.guild(ctx.guild).dj_enabled()
        )
        player = lavalink.get_player(ctx.guild.id)

        if dj_enabled:
            if not await self._can_instaskip(ctx, ctx.author):
                return await self._embed_msg(
                    ctx,
                    title=_("Unable to disconnect"),
                    description=_("You need the DJ role to disconnect."),
                )
        if not await self._can_instaskip(ctx, ctx.author) and not await self._is_alone(
            ctx
        ):
            return await self._embed_msg(
                ctx, title=_("There are other people listening to music.")
            )
        else:
            await self._embed_msg(ctx, title=_("Disconnecting..."))
            self.bot.dispatch("red_audio_audio_disconnect", ctx.guild)
            self._play_lock(ctx, False)
            eq = player.fetch("eq")
            player.queue = []
            player.store("playing_song", None)
            if eq:
                await self.config.custom("EQUALIZER", ctx.guild.id).eq_bands.set(
                    eq.bands
                )
            await player.stop()
            await player.disconnect()