I am changing my website and to do that I copied the site, made the changes (mostly deleting pages) and published it. I mistakenly removed a page which has layers.

Along the top of the page there are five dates which when clicked bring up a map of the layout of my village in that year plus some text. The page worked fine in the original site and also seems okay when I preview it in the new site but, having published it, all I have are the dates and nothing else. As well as the fact that the page doesn't work I have a problem in that when I try various things to get it to work I have to republish as the preview option keeps showing it as I should be not as it is(!). Can you help please?