Почему при парсинге данных вылетает ошибка 404?

import requests

def main():
    h = {'Cookie': 'cookname=fsink; cookid=9a465629c4b5460bfe473034a6ec03e0; php_session_id_real=3lqqoquddfbjeosj7qfuilgon',
         'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0',
         'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
         'Accept-Encoding': 'gzip, deflate',
         'Accept-Language': 'ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3',
         'Cache-Control': 'no-cache',
         'Connection': 'keep-alive',
         'DNT': '1',
         'Host': 'somesite.ru',
         'Pragma': 'no-cache',
         'Upgrade-Insecure-Requests': '1'}

    r = requests.get('http://somesite.ru/store/index.php', headers=h)

    with open('question.txt', 'w') as f:
        f.write(r.text)


if __name__ == "__main__":
    main()