Why does it give an error when you write start to the bot?

Question

Python

For some reason, when you write the /start command to the bot, it does not write anything and gives an error to the console. How to fix it?
Mistake:

2021-03-17 12:10:24,055 (__init__.py:515 MainThread) ERROR - TeleBot: "A request to the Telegram API was unsuccessful. Error code: 400. Description: Bad Request: wrong remote file identifier specified: Wrong character in the string"

The code:

@bot.message_handler(commands=['start'])
def welcome(message):
    bot.send_sticker(message.chat.id, 'Привет!')
    markup = types.ReplyKeyboardMarkup(resize_keyboard=True)
    item1 = types.KeyboardButton(" Рандомное число")
    item2 = types.KeyboardButton(" Как дела?")

Answer 1

https://core.telegram.org/bots/api#sendsticker
The second parameter of the method should be the sticker itself (file_d or url)