Помогите пожалуйста получить данные с этого Soap ответ
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SOAP-ENV:Body>
<cred:receiveCreditDecision
xmlns=""
xmlns:cred="http://b2b.instantloan.com/CreditDecision">
<decision>
<amount>0</amount>
<creditTerm>15</creditTerm>
<decision>1</decision>
<downPayment></downPayment>
<environmentCode>KREDBRKMNG_TEST</environmentCode>
<product>PKP285_М6_36</product>
<reference>2-1BVB7NYF</reference>
<referenceKB></referenceKB>
<source>OTPBank</source>
<monthlypaymentamount>0</monthlypaymentamount>
<CreditAmount>0</CreditAmount>
<FullAgentServicesAmount>0</FullAgentServicesAmount>
<AgentServicesAmount>0</AgentServicesAmount>
<limitCartOfGoods>100000</limitCartOfGoods>
</decision>
</cred:receiveCreditDecision>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Мои попытки
$xml = simplexml_load_string($soap_response);
$xml->registerXPathNamespace('SOAP-ENV', 'http://schemas.xmlsoap.org/soap/envelope/');
$xml->registerXPathNamespace('cred', 'http://b2b.instantloan.com/CreditDecision');
$xml_resp = $xml->xpath('//cred:receiveCreditDecision/decision');
$otp_result_parse_array = json_decode(json_encode($xml_resp[0]), true);
Возвращает 500 ошибку