Mirroring widgets stopped working…help!

For starters, I’m super new to wordpress/web design, but I think I have a fairly good “basic” understanding of things. I had some buttons that I created that I placed in a widget using the image jetpack, then I developed several more pages and mirrored those widgets on the new pages. All was going well until today when I tried to do the same thing to a new set of pages and the mirroring just didn’t seem to be “taking” for lack of a better word. I tried to start over by deleting the new pages and then looking into the pages that had previously been working to see if I’d set something up different but then I realized that ALL of the mirrored widgets were suddenly empty. Now my site is a mess…help please!