为什么我的sqlite代码无法识别我的桌子？不和谐

Question

为什么我的sqlite数据库表即使有表也给我这个错误？

代码

@commands.Cog.listener()
async def on_message(self, message):
    db = sqlite3.connect('banco.db')
    cursor = db.cursor()
    cursor.execute(f'SELECT nome FROM banco WHERE nome = "{message.author.id}"')
    result = cursor.fetchone()
    if result is None:
        sql = ('INSERT INTO banco(nome, dinheiro) VALUES(?, ?)')
        val = (message.author.id, 0)
        cursor.execute(sql, val)
    db.comit()
    cursor.close()

错误：

Ignoring exception in on_message
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/discord/client.py", line 312, in _run_event
    await coro(*args, **kwargs)
  File "/Users/CIP/Documents/GitHub/economia/cogs/dinheiro.py", line 56, in on_message
    cursor.execute(f'SELECT nome FROM banco WHERE nome = "{message.author.id}"')
sqlite3.OperationalError: no such table: banco

LINE

cursor.execute(f'SELECT nome FROM banco WHERE nome = "{message.author.id}"')