Soap errore Parsing Schema: unexpected <any>

[againhere]

ciao a tutti, utilizzo questo codice per la chiamata alle api di ebay da un paio di mesi, oggi inspiegabilmente ha smesso di funzionare, e ricevo questo messaggio di errore:
SOAP-ERROR: Parsing Schema: unexpected <any> in complexType in /home/mhd-01/www

in rete non sono riuscito a trovare nulla a riguardo, potete aiutarmi?
vi posto il codice completo!

<?php
function print_d($array){    echo "<pre>\n";    print_r($array);    echo "</pre>\n";}


$mytoken = "xxx";
$devId = "xxx";
$appId = "xxx";
$certId = "xxx";
$wsdl_url = 'http://developer.ebay.com/webservices/latest/ebaySvc.wsdl';
$from_time='2013-10-12';
$to_time='2013-11-11';
$apiCall = "GetSellerTransactions";
$credentials = array('AppId' => $appId, 'DevID' => $devId, 'AuthCert' => $certId);
$client     = new SoapClient($wsdl_url, array("trace" => 1, "exceptions" => 0, "location" => "https://api.ebay.com/wsapi?callname=$apiCall&appid=$appId&siteid=0&version=803&Routing=new"));
//$client = new SOAPClient($wsdl_url, array('trace' => 1, 'exceptions' => 0, 'location' => "https://api.ebay.com/wsapi?callname=$apiCall&appid=$appId&siteid=0&version=803&Routing=new"));
$eBayAuth = array('eBayAuthToken' => new SoapVar($mytoken, XSD_STRING, NULL, NULL, NULL, 'urn:ebay:apis:eBLBaseComponents'),
                    'Credentials' => new SoapVar ($credentials, SOAP_ENC_OBJECT, NULL, NULL, NULL, 'urn:ebay:apis:eBLBaseComponents'));  
                    
$header_body = new SoapVar($eBayAuth, SOAP_ENC_OBJECT);    
$header = array(new SOAPHeader('urn:ebay:apis:eBLBaseComponents', 'RequesterCredentials', $header_body));                


$params = array('Version' => 803, 'DetailLevel' => 'ReturnSummary', 'ModTimeFrom'=>$from_time,'ModTimeTo'=>$to_time,'IncludeContainingOrder'=>'true');  //set the API call parameters


$request = $client->__soapCall($apiCall, array($params), NULL, $header);  //make the actual API call


print_d($request); // print the API call results in a nice readable format


//echo "<br><br><br><br>REQUEST:\n" . htmlentities($client->__getLastRequest()) . "\n";   // this lets you view the XML of your last call which can be helpful


?>

PS: error on line 13

$client     = new SoapClient($wsdl_url, array("trace" => 1, "exceptions" => 0, "location" => "https://api.ebay.com/wsapi?callname=$apiCall&appid=$appId&siteid=0&version=803&Routing=new"));