Finally I got an answer from the developers!

Important:
Please DO NOT play until these bugs are fixed (if you continue to play, you won't get paid)!How about the one who win 10btc, will he get paid? Seeing from the screenshot you want to set max bet of 0.001? It is too low, isn't it? Actually you should not set max bet but you should set max profit per bet, it will be useless to set 0.001 max but you allow 0.001 bet with high multiplier.
it is really low, if they want to do a 0.001 for a max bet then they definitely have no funds to payout that huge win of 10 bitcoins, I would stay away from this website right now for sure because the outcome of this situation is hard to predict.