So I was just trying to erase the loops out of my 22500, after navigating the levels to erase loops A and B the looper flashed off, then on again. All of the lights were out and the display reads -28- none of the buttons do anything and it just flashes on and off the 28.

-the photo is a bit blurry, I had to drop it down in Rez to get it under the size limit.