AAC Myaac Sandbox

[_M4G0_]

Hello
im try to activate sandbox on paypal but i can't enable

config

$config['paypal'] = array(
    'enabled' => true,
    'email' => '[email protected]',
    'contact_email' => '', // if empty, email is used
    'item_name' => 'Premium Points',
    'payment_type' => '_xclick', // '_xclick' (Buy Now) or '_donations'
    'currency_code' => 'USD', // https://developer.paypal.com/docs/integration/direct/rest/currency-codes/
    'use_sandbox' => true, // set to true if you want to test IPN in sandbox mode
    'terms' => true, // display terms?
    'options' => array( // cost in USD => points
        '5.00' => 60,
        '10.00' => 120,
        '20.00' => 240,
        '40.00' => 480,
        '60.00' => 1080
    )
);