Python Selenium automation is not locating message button on instagram

Question

I am trying to send a direct message to the usernames saved in another file. But my code is not locating the message button on Instagram.

I've tried all possible ways to locate it (By Xpath, classname, tag_name, css_selector), but I'm still getting the same error.

Here is my code below:

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
import time, random

my_username = "of*********_8"
my_password = "*************"

text_path= '/Users/Admin/Desktop/links.txt'
# opening file containing links
with open(text_path) as file:
    links = file.readlines()


# Messages:
messages = ['Hello, Good Morning!!!']

# Delay time between messages in sec:
between_messages = 2000

browser = webdriver.Chrome('chromedriver')

# Authorization:
def auth(username, password):
    try:
        browser.get('https://instagram.com')
        time.sleep(random.randrange(2,4))

        input_username = browser.find_element(By.NAME, 'username')
        input_password = browser.find_element(By.NAME, 'password')

        input_username.send_keys(username)
        time.sleep(random.randrange(1,2))
        input_password.send_keys(password)
        time.sleep(random.randrange(1,2))
        input_password.send_keys(Keys.ENTER)

    except Exception as err:
        print(err)
        browser.quit()

# Sending messages:
def send_message(users, messages):
    try:
        browser.find_element(By.XPATH, '/html/body/div[1]/section/nav/div[2]/div/div/div[3]/div/div[2]/a').click()
        time.sleep(random.randrange(3,5))
        browser.find_element(By.XPATH, '/html/body/div[5]/div/div/div/div[3]/button[2]').click()
        time.sleep(random.randrange(1,2))
        browser.find_element(By.XPATH, '/html/body/div[1]/section/div/div[2]/div/div/div[2]/div/div[3]/div/button').click()
        for user in users:
            time.sleep(random.randrange(1,2))
            browser.find_element(By.XPATH, '/html/body/div[5]/div/div/div[2]/div[1]/div/div[2]/input').send_keys(users)
            time.sleep(random.randrange(2,3))
            browser.find_element(By.XPATH, '/html/body/div[5]/div/div/div[2]/div[2]/div[1]').find_element(By.TAG_NAME, 'button').click()
            time.sleep(random.randrange(3,4))
            browser.find_element(By.XPATH, '/html/body/div[5]/div/div/div[1]/div/div[2]/div/button').click()
            time.sleep(random.randrange(3,4))
            text_area = browser.find_element(By.XPATH, '/html/body/div[1]/section/div/div[2]/div/div/div[2]/div[2]/div/div[2]/div/div/div[2]/textarea')
            text_area.send_keys(messages)
            time.sleep(random.randrange(2,4))
            text_area.send_keys(Keys.ENTER)
            print(f'Message successfully sent to {user}')
            time.sleep(between_messages)
            browser.find_element(By.XPATH, '/html/body/div[1]/section/div/div[2]/div/div/div[1]/div[1]/div/div[3]/button').click()

    except Exception as err:
        print(err)
        browser.quit()


auth(my_username, my_password)
time.sleep(random.randrange(2,4))
send_message(links, messages)

Not sure what I'm missing here.