How to make sure that the bot does not break if another community writes to the conversation?

Question

Python

The bot crashes if another community writes to the conversation, cannot process its message

for event in longpoll.listen():
        if event.type == VkBotEventType.MESSAGE_NEW: #Слушаем longpoll, если пришло сообщение то:
            response = str(event.message.text)
            user_id = str(event.message.from_id)
            user = vk.users.get(user_ids=user_id)

            elif word == 'дата' or word == 'время' or word == '!time' or word == 'какой сегодня день':
                if event.from_chat:
                        vk.messages.send( #Отправляем сообщение
                            chat_id=event.chat_id, #Здесь chat_id
                            random_id=get_random_id(),
                            message='Сегодня: ' + message_time,
                        )

Mistake:

vk_api.exceptions.ApiError: [113] Invalid user id

Answer 1

Check in event where the message came from, from a group or user
https://vk-api.readthedocs.io/en/latest/_modules/v...

Answer 2

Make exception handling

Answer 3

How do you even get it started?
1. The indents are not correct
2. Store the message in the response, and compare it with some kind of word