i got a error when try get all changed of campaign from campaignId. i searched but don't get a good answer for this problem. Please help about it.
[Jul 04 2011 09:42:42.000000 - INFO] POST /api/adwords/ch/v201101/CustomerSyncService HTTP/1.1
Connection: Keep-Alive
User-Agent: PHP-SOAP/5.2.6, gzip
Accept-Encoding: gzip, deflate
Content-Encoding: gzip
Content-Type: text/xml; charset=utf-8
SOAPAction: ""
Content-Length: 699
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Header>
<ns1:authToken>**********</ns1:authToken>
<ns1:clientCustomerId>********</ns1:clientCustomerId>
<ns1:developerToken>**************</ns1:developerToken>
<ns1:userAgent>**********************</ns1:userAgent>
</ns2:RequestHeader>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<ns2:get>
<ns1:min>20100609 150223 UTC</ns1:min>
<ns1:max>20110704 090741 184</ns1:max>
</ns2:dateTimeRange>
<ns2:campaignIds>85498780</ns2:campaignIds>
</ns2:selector>
</ns2:get>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
HTTP/1.1 500 Internal Server Error
Content-Type: text/xml; charset=UTF-8
Content-Encoding: gzip
Date: Mon, 04 Jul 2011 01:43:07 GMT
Expires: Mon, 04 Jul 2011 01:43:07 GMT
Cache-Control: private, max-age=0
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Content-Length: 418
Server: GSE
<?xml version="1.0"?>
<soap:Body>
<soap:Fault>
<faultcode>soap:Server</faultcode>
<faultstring>InternalApiError.UNEXPECTED_INTERNAL_API_ERROR @ [Ljava.lang.StackTraceElement;@109068f</faultstring>
<detail>
<message>InternalApiError.UNEXPECTED_INTERNAL_API_ERROR @ [Ljava.lang.StackTraceElement;@109068f</message>
<ApplicationException.Type>ApiException</ApplicationException.Type>
<fieldPath/>
<trigger/>
<errorString>InternalApiError.UNEXPECTED_INTERNAL_API_ERROR</errorString>
<ApiError.Type>InternalApiError</ApiError.Type>
<reason>UNEXPECTED_INTERNAL_API_ERROR</reason>
</errors>
</ns2:ApiExceptionFault>
</detail>
</soap:Fault>
</soap:Body>
</soap:Envelope>