I am getting this error 2002 when using php sdk when doing a basic retrieval

REST
1 
use backendless\Backendless;
include "backendless/autoload.php";
$id = "986D6461-07CC-02EE-FFFD-54CDD38B6800";

Backendless::initApp('xxxxxxxxxxxxxx', 'xxxxxxxxxx', 'v1');
 
$user = Backendless::$Persistence->of( 'Users')->findById( $id );
2

Hi Chaddy,
Please re-check your APP_ID and SECRET_KEY in Backendless console.
Do you use Backendless Stadalone or cloud?
Artur