Why I am facing this error while using Serenium module of python 3.7?

Question

from selenium import webdriver
import os
import time

class InstagramBot:

    def __init__(self, username, password):
        self.username = username
        self.password = password
        self.driver = webdriver.Chrome('./chromedriver.exe')
        self.login()

    def login(self):
        self.driver.get('https://www.instagram.com/accounts/login/')
        self.driver.find_element_by_name('username').send_keys(self.username)
        self.driver.find_element_by_name('password').send_keys(self.password)
        self.driver.find_element_by_xpath("//div[contains(text(), 'Log In')]")[0].click()

if __name__ == '__main__':
    ig_bot = InstagramBot('temp_username', 'temp_password')

Errors