I think I found the fix. I did a hard reset on a DBE screen. Turn off the screen. In this order press on the remote:
Mute key;
Number 1 key;
Number 8 key;
Number 2 key;
Power Button
Scroll through the menus until you find Reset, and reset the TV.
Once complete, turn the TV on and set it up as if it was right out of the box. It published after that.
The other issue too is, if your schedule is too large (over 5 gigs), it won't upload and you'll get the same error message you posted. The screen only has a little over 5 gigs internal memory.
If you don't have a DBE screen and the above doesn't work, try googling Hard Reset of your model number.
Hope this helps.