Forbidden authentication in Sandbox environment

Hi, I'm trying to autenticate in a sandbox environment retireving keyId. I'm making the request in PHP on the Laravel project with:

...

\SatispayGBusiness\Api::setSandbox(true);

$authentication = \SatispayGBusiness\Api::authenticateWithToken("CODE_RECEIVED_IN_EMAIL");

...

The response is:

Exception (45) Forbidden, request id: KN62Tp0H in ...\satispay\gbusiness-api-php-sdk\lib\Request.php220

How can i make the activation?
Thanks