The redirect URI in the request, https://natturan.is/accounts/google/login/callback/, 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/693629406866-ohstod0pd5tlaljf9djc839v5snc7s0v.apps.googleusercontent.com?project=693629406866