(Acil) Web Servis Hatası

 
  $client = new SoapClient("https://medula.sgk.gov.tr/medula/hastane/faturaKayitIslemleriWS?wsdl", array("trace" => 1, "exception" => 0)); 
  $return=$client->__setSoapHeaders(Array(new WsseAuthHeader(*****, "****"))); // burda header oluşturuyorum 
  $parama = array( 
   "saglikTesisKodu" => *******, 
    "faturaTeslimNo" => *******; 
    $method='faturaOkuGiris'; 
  $parama=array($method=>$parama); 
  $result = $client->__soapCall('faturaOku', array($parama)); 
  //$client->faturaOku($parama); 
  $result=$client->__getLastRequest(); 
  print_r($result); 
  

Fatal error:  Uncaught SoapFault exception: [Client] looks like we got no XML document in C:\xampp\htdocs\web\web5.php:75 Stack trace: #0 C:\xampp\htdocs\web\web5.php(75): SoapClient->__soapCall('faturaOku', Array) #1 {main}   thrown in C:\xampp\htdocs\web\web5.php on line 75