The redirect URI in the request, https://nachtschwaermertreff.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/229784035616-18l2r527eeroe52iefs4tdp2gvumdbo7.apps.googleusercontent.com?project=229784035616