Any ideas on what to do to fix my wallet?

satoshiroller desktop client

java.lang.IllegalStateException: Wallet contained duplicate transaction
java.lang.IllegalStateException: Wallet contained duplicate transaction
        at com.google.common.base.Preconditions.checkState(Preconditions.java:176)
        at com.google.bitcoin.store.WalletProtobufSerializer.readTransaction(WalletProtobufSerializer.java:352)
        at com.google.bitcoin.store.WalletProtobufSerializer.readWallet(WalletProtobufSerializer.java:282)
        at com.google.bitcoin.core.Wallet.loadFromFileStream(Wallet.java:544)
        at com.google.bitcoin.core.Wallet.loadFromFile(Wallet.java:471)
        at com.satoshiroller.engine.RollerEngine.start(RollerEngine.java:131)
        at com.satoshiroller.gui.SatoshiRoller.launch(SatoshiRoller.java:144)
        at com.satoshiroller.gui.SatoshiRoller.main(SatoshiRoller.java:42)