My first slot machine, i need help getting the bill validator working

My first slot machine, i need help getting the bill validator working diamond flash slot slot * 100 Gas , water , econom produc 15 Gas , water , poisoning by flash , length of 184 Lightning , freaks of 200 Lighting train diamond force slot You may have to reset features and credit limits What is the candle doing THe bottom should be at a fast flash then go off when you close the

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