Hi,
Sorry for the delayed reply, it appears I wasn’t getting notified when people left comments on this plugin.
Your website isn’t currently loading, but if the notification bar is showing up over the header, this is generally because your theme uses a fixed position for the header so it’s always at the top of your site and it’s not offsetting elements that come before it. The fix would be to add some CSS to your header so there is some padding at the top of your site. Or contact the theme developer to see if they can update how their fixed header works so it’s properly positioned if other elements are added before it.