music doesn't like aiohttp 3.6.3 and modmail 4.0.1?

[RFlintstone]

I already tried upgrading aiohttp after which I (still) got this error:

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. 
This behaviour is the source of the following dependency conflicts.
discord-py 2.0.1 requires aiohttp<4,>=3.7.4, but you have aiohttp 3.6.3 which is incompatible.

After upgrading pip itself I got the following error instead:

Failed to download plugin, check logs for error.
<class 'cogs.plugins.InvalidPluginError'>: Cannot load extension, plugin invalid.

When I checked the logs using ?debug this is what it said:

discord.ext.commands.errors.ExtensionFailed: Extension 'plugins.Taaku18.modmail-plugins.music-master.music' raised an error: Error: Incorrect padding
2022-10-26 16:24:26 cogs.plugins[389] - WARNING: Unable to load plugin Taaku18/modmail-plugins/music@master.
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/discord/ext/commands/bot.py", line 946, in _load_from_module_spec
    await setup(self)
  File "/modmailbot/plugins/Taaku18/modmail-plugins/music-master/music.py", line 1371, in setup
    bot.add_cog(Music(bot))
  File "/modmailbot/plugins/Taaku18/modmail-plugins/music-master/music.py", line 75, in __init__
    BOT_ID = int(b64decode(self.bot.token.split(".")[0]).decode())
  File "/usr/local/lib/python3.9/base64.py", line 87, in b64decode
    return binascii.a2b_base64(s)
binascii.Error: Incorrect padding

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

Traceback (most recent call last):
  File "/modmailbot/cogs/plugins.py", line 259, in load_plugin
    await self.bot.load_extension(plugin.ext_string)
  File "/usr/local/lib/python3.9/site-packages/discord/ext/commands/bot.py", line 1012, in load_extension
    await self._load_from_module_spec(spec, name)
  File "/usr/local/lib/python3.9/site-packages/discord/ext/commands/bot.py", line 951, in _load_from_module_spec
    raise errors.ExtensionFailed(key, e) from e
discord.ext.commands.errors.ExtensionFailed: Extension 'plugins.Taaku18.modmail-plugins.music-master.music' raised an error: Error: Incorrect padding

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

Traceback (most recent call last):
  File "/modmailbot/cogs/plugins.py", line 387, in plugins_add
    await self.load_plugin(plugin)
  File "/modmailbot/cogs/plugins.py", line 265, in load_plugin
    raise InvalidPluginError("Cannot load extension, plugin invalid.") from exc
cogs.plugins.InvalidPluginError: Cannot load extension, plugin invalid.

I run the bot in an to internet exposed docker container with all requirements installed.
My modmail version is 4.0.1
After every step I took I both reinstalled the plugin and restarted the docker container (and therefore also the discord bot)