TV Guide listings disappeared. How to fix?



I have a new DMR-EH50 about 2 months old. The online TV Guide was downloading fine and the listings were updating as they should. Recordings were super simple. Then about a week ago, the listings all disappeared. The channel lineup is still there but the program contents now says “Program listing not available” or something like that. I re-did the setup, left if off for 24 hours and still nothing.
I now have to manually program my recordings thru the VCR+ option.

How can I fix this?