The redirect URI in the request, http://www.lpg-schwarze-pumpe-1988.de/index.php?google-auth/, 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/740844066963-540ge6h584bshofeefgcsm5lf8r5rjva.apps.googleusercontent.com?project=740844066963