vRO (vCO) HTTP-REST Workflow - Connection pool shut down

Hi All - I recently upgraded to vRealize Automation 6.2 and am working with vRealize Orchestrator to create workflows.  I've created HTTP-REST workflows to request/release an IP address from our IPAM system (VitalQIP) and it seems to be failing with the following description/exception:

Connection pool shutdown (Workflow:Request-IP-from-QIP / Scripting (item3)#14)

Looking in the Schema>Scripting line #14 is in red below:

//prepare request

//Do not edit

var inParamtersValues = [subnet, hostname, ddns, mac, type, w2kdom, comment];

var request = restOperation.createRequest(inParamtersValues, null);

//set the request content type

request.contentType = "";

System.log("Request: " + request);

System.log("Request URL: " + request.fullUrl);

//Customize the request here

//request.setHeader("headerName", "headerValue");

//execute request

//Do not edit

var response = request.execute();

//prepare output parameters

System.log("Response: " + response);

statusCode = response.statusCode;

statusCodeAttribute = statusCode;

System.log("Status code: " + statusCode);

contentLength = response.contentLength;

headers = response.getAllHeaders();

contentAsString = response.contentAsString;

System.log("Content as string: " + contentAsString);

// Grep for IPaddress

var patt = ("IP Address.*");

var ipaddress = contentAsString.match(patt).toString();

ipaddress = ipaddress.split(/[\s,]+/);

ipaddress = ipaddress[2];

System.log ("IP Address := " +ipaddress);

I am unsure of how to get around this issue and am looking for some assistance as I am fairly new to vRO.  Thanks much!