Why doesn't the python bot code work?

Question

Python

The code does not work, there are no errors in the console, I can not understand what the error is

@dp.message_handler(regexp=r"(Купить|купить) ?(\d+)? ?(\d+)?")
async def process_start_command(message: types.Message): 
    balanc = cur.execute("SELECT balance from users where userid = ?", (message.from_user.id,)).fetchone()
    balance = (balanc[0])
    command_parse = re.compile(r"(Купить|купить) ?(\d+)? ?(\d+)?")
    parsed = command_parse.match(message.text)
    buy_item = parsed.group(2)
    count = parsed.group(3)
    if not count:
        count = 1
        if int(count) > 0:
            if str(buy_item) == 'ручку':
                final_count = count * 250000
                if int(balance) >= int(final_count):
                    if int(count) <= 10:
                        data = {}
                        data["suma"] = int(final_count)
                        data['user_id'] = message.from_user.id
                        data1 = {}
                        data1["suma"] = int(count)
                        data1['user_id'] = message.from_user.id
                        cur.execute("""UPDATE users SET balance = balance - :suma WHERE userid = :user_id;""", data)
                        cur.execute("""UPDATE users SET pen = pen + :suma WHERE userid = :user_id;""", data1)
                        await message.answer( f'{name1} ты успешно купил(а) {count} за {final_count} ', parse_mode='html')


                    else:
                        await message.answer( f'{name1}, нельзя покупать более 10 едениц за 1 раз', parse_mode='html')
                elif int(balance) < int(final_count):
                    await message.answer( f'{name1} у тебя нет столько \nТвой баланс: {balance} ', parse_mode='html')

Answer 1

The code does not work, there are no errors in the console,

Use the complex debug function print and find the place where the work stops.
Regular search for a number in a string, then compare whether this number is equal to a wordручку