Playback Errors on my Rovi DVR starting today August 1, 2018

Today was the first time I got a playback error ("We're sorry this show is currently unavailable") on recorded DVR list programs.A month or so ago I returned my old DVR and swapped it for a another Explorer 8240 HDC. All of a sudden (today) I start getting playback errors. Searching the forum for other people that have had this problem are old at best (1 year or more).and  I didn't see anyone answer the questions on the old messages. I can erase the recorded shows but not play them.

Any help would be appreciated.

Thanks.

Tony Olson