Bug report Crash when selecting Quest deck in Constructed

[rex4]

In 1.6.19 I have this error when I try to select a quest deck for me or the AI in constructed mode:
java.lang.NullPointerException
at forge.quest.QuestController.getDeckConstructionRules(QuestController.java:617)
at forge.quest.QuestController.resetDuelsManager(QuestController.java:440)
at forge.quest.QuestController.getDuelsManager(QuestController.java:413)
at forge.deck.DeckProxy.getAllQuestEventAndChallenges(DeckProxy.java:523)
at forge.deckchooser.FDeckChooser.updateQuestEvents(FDeckChooser.java:236)
at forge.deckchooser.FDeckChooser.refreshDecksList(FDeckChooser.java:402)
at forge.deckchooser.FDeckChooser.deckTypeSelected(FDeckChooser.java:331)
at forge.deckchooser.DecksComboBox.notifyDeckTypeSelected(DecksComboBox.java:61)
at forge.deckchooser.DecksComboBox.access$100(DecksComboBox.java:18)
at forge.deckchooser.DecksComboBox$1.actionPerformed(DecksComboBox.java:46)
at javax.swing.JComboBox.fireActionEvent(Unknown Source)
at javax.swing.JComboBox.setSelectedItem(Unknown Source)
at javax.swing.JComboBox.setSelectedIndex(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup$Handler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup$1.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

I didn't have this problem with 1.6.8 and I have the same problem with a new installation on another computer.