Messages not being sent to discord.py, what's the problem?

Question

Python

The discord bot cannot send a message to the user. The error below says that the user with this id does not exist, so it returns a None object, and the None object does not have a send attribute.
And it all worked before.

member = bot.get_user(int(executor))
await member.send(f"Заказ №{order_id} оплачен.")

Discord.ext.commands.errors.CommandInvokeError
: Command raised an exception: AttributeError: 'NoneType' object has no attribute 'send'

Answer 1

Most likely get_user does not find anyone

Answer 2

get_user accepts a user ID, try writing bot.get_user(executor.id)

Answer 3

Most likely it can't find the user