Our website was hacked a week ago and we had to restore it. In doing so we updated the version of WP and of Next-Gen. Now, we cannot add any elements to Next Gen. When I tried to add a picture, the picture gets uploaded to the server in the correct folder, but doesn't appear on the web site. If I try to add a Gallery I don't see anything.
I understand that the database version changed between versions. Is it possible that we will have to start over?