After Discord introduced changes to intents, I managed to get most functions working with the latest discord and discord.py modules by making some changes:
Instead of
client = Bot(command_prefix=determine_prefix)
I am using
intents = discord.Intents.all()
intents.members = False
client = commands.Bot(command_prefix=determine_prefix, intents=intents)
With this the bot runs and most functions seems to be working, but I have not been able to get notifications in channel to show.