What is wrong with this line of code?

Question

Python

Here is the code

import discord
from discord.ext import commands

import sqlite3
from config import settings 

client = commands.Bot(command_prefix = settings['PREFIX'])
client.remove_command('help')

connection = sqlite3.connect('server.db')
cursor = connection.cursor()


@client.event 
async def on_ready():
  cursor.execute("""CREATE TABLE IF NOT EXISTS users (
    name TEXT,
    id INT,
    cash BIGINT,
    rep  INT,
    lvl INT
    ) """)

  for guild in client.guilds:
    for member in guild.members:
      if cursor.execute(f"SELECT id FROM users WHERE id = {member.id}").fetchone() is None:
        cursor.execute(f"INSERT INTO users VALUES ('{member}', {member.id}, 0, 0, 1)")
    else:
      pass

      connection.commit()
      print('Bot connected')


@client.event
async def on_member_join(member):
  if cursor.execute(f"SELECT id FROM users WHERE id = {member.id}").fetchone() is None:
    cursor.execute(f"INSERT INTO users VALUES ('{member}', {member.id}, 0, 0, 1)")
    connection.commit()
  else:
    pass

@client.command(aliases = ['blance', 'cash'])
async def __balance(ctx, member: discord.Member = None):
  if member is None:
    await ctx.send(embed = discord.Embed(
      description = f"""Баланс пользователя **{ctx.author}** составляет ** {cursor.execute("SELECT cash FROM users WHERE id = {}".format(ctx.author.id)).fetchone()[0]} :leaves **""" is None
      ))
  else:
    await ctx.send(embed = discord.Embed(
      description = f"""Баланс пользователя **{member}** составляет ** {cursor.execute("SELECT cash FROM users WHERE id = {}".format(member.id)).fetchone()[0]} :leaves **"""
      ))



client.run(settings['TOKEN'])

Here is the error

Ignoring exception in command None:
discord.ext.commands.errors.CommandNotFound: Command "balance" is not found

Answer 1

@client.command(aliases = ['blance', 'cash'])
bAlance