Not able to execute ThingWorx Service through ThingWorx Subscription

Hello,

I want to store data into ThingWorx Stream (Inspection-Stream).

I have written a service in ThingWorx Datatable (Inspection-DT) to add data into stream

Code:

try {
// Your whole code here

// tags:TAGS
let tags = new Array();

// timestamp:DATETIME
let timestamp = new Date();

// values:INFOTABLE(Datashape:Inspection-DS)
let values = Things["Inspection-Stream"].CreateValues();

values.PartNumber = me.PartNumberProp; //NUMBER
values.StepNumber = me.StepNumberProp; //STRING
values.StepDefect = me.StepDefectProp; //STRING
//values.GUID = undefined; //GUID
values.StepImage = me.StepImageProp; //IMAGE
values.StepStatus = me.StepStatusProp; //STRING
values.EmpID = me.EmpIDProp; //NUMBER
values.DateTime = Date.now(); //DATETIME

// location:LOCATION
let location = {
latitude: 0,
longitude: 0,
elevation: 0,
units: "WGS84"
};

let params = {
tags: tags,
timestamp: timestamp,
source: me.name,
values: values,
location: location
};

// AddStreamEntry(tags:TAGS, timestamp:DATETIME, source:STRING("me.name"), values:INFOTABLE(Inspection-DS), location:LOCATION):NOTHING
Things["Inspection-Stream"].AddStreamEntry(params);

} catch(err) {
logger.error(err.message + " in line " + err.lineNumber);
}

I want to execute the above service through a subscription which is triggered whenever a property (DateTime) changes below is the service (AddData) written in Subscription

Code:

if(eventData.newValue.value){
me.InspectionAddData();

logger.warn('Successful'+eventData.newValue.value);
}

The output is giving an error, I have attached the error file.

Please help me out.

Thanks in Advance.

Regards,

Aditya Gupta