The game log does suggest it was a null pointer DM.
INFO [Client.logRoundtripTime] Client: Roundtrip time is 98 ms
INFO [PlotSeller.generateColonyAuctions] Generated 0 colony land auctions
INFO [AbstractLandAuctionPhase.begin] Land Auctions Player: 0 Colony: 0
SEVERE [Main.logError] java.lang.NullPointerException
at com.turborilla.mule.controller.AuctionController.apply(AuctionController.java:234)
at com.turborilla.mule.controller.phase.AbstractLandAuctionPhase.apply(AbstractLandAuctionPhase.java:391)
at com.turborilla.mule.network.UDPMessage$TotalAuctionStateMessage.accept(UDPMessage.java:347)
at com.turborilla.mule.controller.GameController.applyReceivedMessages(GameController.java:362)
at com.turborilla.mule.controller.GameController.update(GameController.java:238)
at com.turborilla.mule.view.MuleGame.update(MuleGame.java:64)
at com.turborilla.mule.view.MuleGameContainer.update(MuleGameContainer.java:412)
at com.turborilla.mule.view.MuleGameContainer.run(MuleGameContainer.java:286)
at com.turborilla.mule.Main.main(Main.java:209)
INFO [MasterClient.logSend] MasterClient: Sending Game Log
INFO [MuleGameContainer.release] Closing game.
INFO [GameController.close] -------- CLOSING GAME CONTROLLER ----------------------------------
INFO [MasterClient.logSend] MasterClient: Sending Game Log