Pay close attention to your web browser. Many web browsers will notify you when a web page isn't working correctly, but if you don't know where to look, you'll probably miss these notifications. For most web browsers, these notifications appear either at the top of the open window or at the bottom of it, and they most commonly appear when the browser is trying to block something, especially pop-up windows, which you may need to enable to view database content.
Install another web browser, or the latest version of your current one, and attempt to view the content on it. You can get the latest versions of the recommended web browsers at: