I don't know how it was working one hour and then not next unless you changed MAME versions or ran a ROM manager in between. Anyway, that file is a device ROM. I can't see it that well in the image but I believe the ROM name is the one in parenthesis. Download that device ROM. To be sure of the name, just look in the listinfo output. Search for that name and it should be towards the bottom of the file. It will say isdevice=yes in the line.