Gateway Time Out webfoersterei / domain-bestellsystem-api-client

Question

I am using webfoersterei/domain-bestellsystem-api-client library in laravel and i want to create domain from this library.But i am getting Gtaeway Time out error . if anyone work on this please help me to solve this issue.here is my code..

    $soap_user = env('SOAP_USER');
    $soap_pw = env('SOAP_PASSWORD');
    $wsdl = env('WSDL_FILE_LINK');

    $request = new CreateRequest;

    $nameserverArray = [
        "item" => "dns.dns1.eu"
    ];
    $nsEntryArray = [
        "nsEntry" => $payload['nsEntry']
    ];
     $nameserver  = $request->setNameserver($nameserverArray);

     $ownerC = $request->setOwnerC($payload['ownerC']);

     $adminC = $request->setAdminC($payload['adminC']);

     $techC = $request->setTechC($payload['techC']);

     $zoneC = $request->setZoneC($payload['zoneC']);

     $finalObject = $request->setNsEntry($nsEntryArray);

     $domainClient = ClientFactory::createDomainClient($wsdl, $soap_user, $soap_pw);

     $response = $domainClient->create($payload['domainName'],$finalObject);

     print_r($response);

     die();