No, it means that if a lottery is already going on right now, you should pay the buyers of the tickets their money back and cancel the lottery.
wait, my lottery isn't to get money you eiter win something good like a diamond block or something bad like a sapling or dirt. plus idk how much money the people payed for the coins (you throw in a coin to set off the dispenser)
Don't worry, I'm pretty sure the "paying money back" doesn't apply to you. You do need to stop that thing though, because lotteries in general (except when free) are not allowed anymore.
