I followed your first thread, about unconfirmed tx...
You used an unconfirmed tx output from that tx as a input to this transaction. As first tx got dropped after 2 days, so is the second.
DO you mean like a double spend ?
No. He didn't use same outputs in two tx - he assumed unconfirmed coins are his, and tried to spend that in another zero confirmation tx to that game.
But everybody pleying on LuckyBit like me , this situation always happens.... But I really didn't double spend my coins..
Anyway , can't I get my coins back now?
Probably not. Since your bet was never confirmed, as far as luckyb.it is concerned you never made your bet. The transaction that paid out your winnings spent part of the input that you sent them so it was dependent on the transaction you sent them confirming.
Next time you should use a casino that allows for "off-chain" bets. Using an on-chain casino will cause the house edge to be much higher then advertised because of the cost of including TX fees