im getting this error wher im i getting it wrong please help
im using php sdk with slim and composer
$payment = $paynow->createPayment(‘REF’, ‘myemail@gmail.com’);
$payment->add(‘Bananas’, 2.50);
$payment->add(‘Apples’, 3.40);
$response = $paynow->sendMobile($payment, ‘0772222222’, ‘ecocash’);
C:\wamp64\www\\routes\api.php:82: object(Paynow\Core\InitResponse)[58] private 'data' => array (size=2) 'status' => string 'Error' (length=5) 'error' => string 'Invalid Hash. Hash should start with: DD4007' (length=45) public 'success' => boolean false public 'status' => string 'error' (length=5) private 'errors' => array (size=1) 0 => string 'invalid hash. hash should start with: dd4007' (length=45)