Googled the error (from Error Console) and it gave me the following:
if (!cDMXPopupWindow) {
alert('The Advanced Layer Popup script is missing on your website!\nPlease upload the file ScriptLibrary/advLayerPopup.js to your live server.');
}
Could anyone explain this and provide a solution (not techie, so imagine you're talking to a not-very-bright 10 year old).
Appreciate any help.