Unable to get element with id="parcelMailingAddressResult" from https://www.mohavecounty.us/ContentPage.aspx?id=111&cid=869&parcel=10272001 : Unable to get element with id="parcelMailingAddressResult" from https://www.mohavecounty.us/ContentPage.aspx?id=111&cid=869&parcel=10272001 using HTMLUnit in Java

If you go to https://www.mohavecounty.us/ContentPage.aspx?id=111&cid=869&parcel=10272001 , you will see that there is a mailing address. A DOM inspection of the website shows that address has the following id: id="parcelMailingAddressResult". I have been trying for several days to get that mailing address using my Java/HTMLUnit problem, and nothing I tried worked.
Below are three methods that I tried within the same code.
            

    System.getProperties().put("org.apache.commons.logging.simplelog.defaultlog", "fatal");
    final WebClient webClient = new WebClient();
    webClient.getOptions().setCssEnabled(false);
    webClient.getOptions().setJavaScriptEnabled(false);           
    webClient.getOptions().setThrowExceptionOnScriptError(false);
    webClient.setRefreshHandler(new RefreshHandler() {
    public void handleRefresh(Page page, URL url, int arg) throws IOException {
        System.out.println("handleRefresh");
    }
    });
    HtmlPage page = (HtmlPage) webClient.getPage("https://www.mohavecounty.us/ContentPage.aspx?id=111&cid=869&parcel=10272001"); 
    DomElement ownerAddresses = page.getElementById("parcelMailingAddressResult");
    NodeList nodes = page.getElementsByTagName("parcelMailingAddressResult");
    final HtmlDivision div = (HtmlDivision) page.getByXPath("//div[@class='container-fluid row']").get(0);

I expected the variables ownderAddresses and nodes to contain information that includes the owner's address. I expect div to contain some other information and, once I changed get(0) to get(<someHigherInteger>), to contain also information about the owner's address.

Instead:
1) ownerAddresses = null (after execution of ownerAddress = ...)
2) nodes is of size 0 (after execution of nodes = ...)
3) final HtmlDivision div = (HtmlDivision) page.getByXPath("//div[@class='container-fluid row']").get(0);
after about 13 seconds, throws the following exception:
Exception:  java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
which means that (HtmlDivision) page.getByXPath("//div[@class='container-fluid row']") was of length 0.

