I have written reviews about various products on my site and I want to add images to the reviews. When I go through the process and get to "SAVE", a pop-up comes up that says "Stack overflow at line: 500" and then when I click on "cancel" another pop-up says "Are you sure you want to navigate away from this page? The changes you made will be lost if you navigate away from this page. Press ok to continue, or cancel to stay on the current page." In other words I am not allowed to save changes. Please help.