Preview/publishing has gone bonkers

I've been using Presenter for years now--this morning when I opened a file and tried to preview some slides, the little circle happened, but nothing came up.  If I went to preview a range of slides, the range panel appeared but there were no slides or number listed.  If I publish the project, it publishes without any pictures or playlists.

I don't know what has happened, but all of a sudden things have gone bonkers.  Any suggestions as to what I can do?

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