you have a bot/cheater problem on your website
all the users starting with 1 in their usernames are bots/cheaters
they always bet 0.006mbtc like 3 or 4 of them on time intervals, i guess they collecting the btc
this game doesn't prohibit you using bots and you should get no advantage if it is provably fair by using bots
this will only allow you to bet a certain amount at certain times, nothing more
I don't see a free faucet there to abuse or anything, so the bots ,if they are bots are fine
the thing is I don't see too many players there at all now, the usual PVP sites problem
Every like ten or something minutes 3-4 new accounts would bet 0.006mbtc (free code+faucet) = the one who made the accounts would always win in the end