The redirect URI in the request, https://perevod.az/?option=com_slogin&task=check&plugin=google, 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/369035425357-h6drt7prvdggrfs27v2iljrmjgqmb69s.apps.googleusercontent.com?project=369035425357