SMP kapsel flush return success but errors in Errorarchive

Hi Experts,

I am calling the store.flush to send to offline created data to the server. Creation is working in online mode.

Below is the code:

Open Store:

 var properties = {        "name": "OfflineStore",        "host": applicationContext.registrationContext.serverHost,        "port": applicationContext.registrationContext.serverPort,        "https": applicationContext.registrationContext.https,        "serviceRoot" :  applicationContext.applicationEndpointURL+"/ZSERV_SRV",        "streamParams" : "custom_header=Authorization:" + authStr + ";",        "definingRequests" : {               "CreateDR":"/CreateSet" // In the gateway service I have implemented Create_Entity, Get_Entity and Get_EntitySet methods         }

Create Record:        

function createRecord(dataRec) {    var oHeaders = {};    oHeaders['Authorization'] = authStr;    oHeaders['x-csrf-token'] = csrftoken;    oHeaders['Content-Type'] = "application/json; charset=utf-8";    var sUrl = applicationContext.applicationEndpointURL + "/ZSERV_SRV/Createset"    console.log("create URL="+sUrl);    var request = {        headers: oHeaders,        requestUri: sUrl,        method: "POST",        data: params    };    OData.request(request, creationSuccess, createError);   
}

Flush Store:

function flushStore() {    if (!store) {        alert("The store must be open before it can be flushed");        return;    }    startTime = new Date();        store.flush(flushStoreSuccessCallback, errorCallback);
}

flush call was successful, but when called /ErrorArchive I see below errors

[{"RequestID":"1","Message":"{\"error\":{\"code\":\"005056A509B11ED1B9BF9F46AA8E82ED\",\"message\":{\"lang\":\"en\",\"value\":\"In the context of Data Services an unknown internal server error occured\"},\"innererror\":{\"transactionid\":\"44BD65E52E90F15C80DB005056B104DC\",\"timestamp\":\"20150928084529.1490000\",\"Error_Resolution\":{\"SAP_Transaction\":\"Run transaction /IWFND/ERROR_LOG on SAP NW Gateway hub system and search for entries with the timestamp above for more details\",\"SAP_Note\":\"See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)\"}}}}","Domain":"ODataDomain","CustomTag":null,"HTTPStatusCode":500,"InnerError":null,"RequestBody":"{}","__metadata":{"uri":"http://smp:port/com.company/ZSERV_SRV/ErrorArchive(RequestID=1L)","type":"OfflineOData.Error"},"RequestURL":"CreateSet","Code":null,"RequestMethod":"POST"}]

[Log] CreateSet (console-via-logger.js, line 173)

[Log] {"error":{"code":"005056A509B11ED1B9BF9F46AA8E82ED","message":{"lang":"en","value":"In the context of Data Services an unknown internal server error occured"},"innererror":{"transactionid":"44BD65E52E90F15C80DB005056B104DC","timestamp":"20150928084529.1490000","Error_Resolution":{"SAP_Transaction":"Run transaction /IWFND/ERROR_LOG on SAP NW Gateway hub system and search for entries with the timestamp above for more details","SAP_Note":"See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)"}}}} (console-via-logger.js, line 173)acti

Error in Gateway Server:

Method 'IF_SXML_READER~GET_ATTRIBUTE_VALUE' cannot be called at this position in the XML stream.

Can anyone advise where could be wrong.

Regards,

Murthy