A small mistake on dice made my wallet get emptied. Only mistake is that I didn't added an additional zero to the bet amount. Instead of 0.00005 btc I mistakenly placed 0.0005 btc. Further on the consecutive bets went for a double the value. This all of the sudden emptied my wallet. I didn't watched the wallet until the bet amount in the tab turned zero. Further watched the bet history and understood what big mistake I've done.
This mistakes happen, lucky that you didn't have higher bankroll. Frankly, you would have lost it quickly even if it wasn't a mistake. 5000 satoshi is too high bet for martingale, it can last for 7 bad bets and this way you have lost it in only 4, it is not so big mistake.