It gives an error, I don’t know what to do (I’m creating a Discord bot on economics), what should I do?

Question

Python

My 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 INFO users VALUES ('{member}', {member.id}, 0, 0, 1)")
    connection.commit()
  else:
    pass

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

client.run(settings['TOKEN'])

The error occurs after entering the !balance command:

Ignoring exception in command __balance:
Traceback (most recent call last):
  File "C:\Users\дом\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "C:\Users\дом\Desktop\PsBotEconomic\bot.py", line 43, in __balance
    description =(f"""Баланс **{ctx.author}** составляет **{cursor.execute("SELECT cash FROM users WHERE id = {}".format(ctx.author.id)).fetchone()[0]} :leaves:**""")
TypeError: 'NoneType' object is not subscriptable

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

Traceback (most recent call last):
  File "C:\Users\дом\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\bot.py", line 939, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Users\дом\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\core.py", line 863, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Users\дом\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\core.py", line 94, in wrapped
    raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: TypeError: 'NoneType' object is not subscriptable

Answer 1

The error indicates that the query from the database does not return data. Those. for this user id was not found in the table.