Official stream cog does not work

[GameAreaCZ]

What Red version are you using?

3.5.4

What were you trying to do?

I set the Twitch API key, add a streamer to the streamalert list and wanna get a alert/notification when he started a stream.

What did you expect to happen?

To have a notification in set channel.

What actually happened?

Nothing. No notification or post in a Discord channel. No mention. This error in the console:

[12:08:12] ERROR [red.core.cogs.Streams] An error has occurred with Streams. Please report it.
╭───────────────────── Traceback (most recent call last) ──────────────────────╮
│ /home/container/.local/lib/python3.11/site-packages/redbot/cogs/streams/stre │
│ ams.py:833 in check_streams │
│ ❱ 833 embed, is_rerun = await stream.is_online() │
│ /home/container/.local/lib/python3.11/site-packages/redbot/cogs/streams/stre │
│ amtypes.py:414 in is_online │
│ ❱ 414 return self.make_embed(final_data), final_data["type"] == │
│ /home/container/.local/lib/python3.11/site-packages/redbot/cogs/streams/stre │
│ amtypes.py:450 in make_embed │
│ ❱ 450 embed.addfield(name=("Followers"), value=humanize_number(dat │
│ /home/container/.local/lib/python3.11/site-packages/redbot/core/utils/chat_f │
│ ormatting.py:593 in humanize_number │
│ ❱ 593 return format_decimal(val, locale=get_babel_regional_format(overri │
│ /home/container/.local/lib/python3.11/site-packages/babel/numbers.py:480 in │
│ format_decimal │
│ ❱ 480 return pattern.apply( │
│ /home/container/.local/lib/python3.11/site-packages/babel/numbers.py:1179 in │
│ apply │
│ ❱ 1179 value = decimal.Decimal(str(value)) │
╰──────────────────────────────────────────────────────────────────────────────╯
InvalidOperation: [<class 'decimal.ConversionSyntax'>]

How can we reproduce this error?

1. Set streams cog.
2. Set Twitch key.
3. Set streamer to a list for mention and alert to a Discord channel (bazimcz Twitch channel was added only).
4. Let the streamer start a stream.
5. Wait for a notification.

Anything else?

No response

[Kowlin]

This has been resolved in 3.5.5