The redirect URI in the request, http://mercadu.eu/laravel/public/login/google/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/369384756913-stfecbgjrim1c4i8o8fu63253a3641n6.apps.googleusercontent.com?project=369384756913