At 250 ounces per day and say 4 ounces per tonne, that's roughly 62 tonnes per day through a 158 tonnes per day BIOX plant. So if the place was running at less than half capacity that's how you end up not shutting down due to a lack of ore.
Shutting mills down due to a lack of diesel, well that's a different story.
Lets get all the facts straight.