The redirect URI in the request, https://arun-hpcc.ru.ac.bd/social-auth/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/974275016113-s0g2rm21vsqar24e14khiqdivkpoi3lc.apps.googleusercontent.com?project=974275016113