In my opinion someone want to start gambling website without bankroll.. So just be carefull everyone! It can happen that even if you win, you will never get your reward!
To OP - show us your cold wallet to confirm that you are able to pay winnings!
I think you know very well that printscreen can prove nothing. As i wrote before, i suspect that you don't have enough to protect winnings..
Lotteries are pool-backed, not bank-backed. A bankroll is not required to operate a lottery since winnings come from the participants in a given drawing.