The redirect URI in the request, http://barnaul.zaotdih.ru/complete/google-oauth2/, does not match the ones authorized for the OAuth client. To update the authorized redirect URIs, visit: https://console.developers.google.com/apis/credentials/oauthclient/996911914355-9l02hfdn9clceuj7hl1qpqf7sr39222f.apps.googleusercontent.com?project=996911914355