The lights went out in Cuba again! It's the second time in one day that the power grid has stopped working.
Lots of people, over 10 million, are in the dark right now. It's like a giant game of hide and seek with the electricity.
The government is trying to fix it, but it's taking a long time because something else broke in another part of the country.
It's been hard for people in Cuba to get power for a long time now, because the electricity system isn't in good shape.
