crash while undoing an action.

[whitevamp]

I had anciently hit delete and removed a node, so I hit the undo button, but it crashed.
This is the log that popped up.
Error log:
AutoDriveEditor.RoadNetwork.RoadMap.insertMapNode(RoadMap.java:101) AutoDriveEditor.GUI.Buttons.Nodes.DeleteNodeButton$DeleteNodeChanger.undo(DeleteNodeButton.java:269) AutoDriveEditor.Managers.ChangeManager.undo(ChangeManager.java:94) AutoDriveEditor.GUI.Menus.EditMenu.UndoMenu.actionPerformed(UndoMenu.java:23) java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972) java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2313) java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405) java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262) java.desktop/javax.swing.AbstractButton.doClick(AbstractButton.java:374) java.desktop/javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1028) java.desktop/javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1072) java.desktop/java.awt.Component.processMouseEvent(Component.java:6626) java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3389) java.desktop/java.awt.Component.processEvent(Component.java:6391) java.desktop/java.awt.Container.processEvent(Container.java:2266) java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5001) java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324) java.desktop/java.awt.Component.dispatchEvent(Component.java:4833) java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4948) java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4575) java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4516) java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310) java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780) java.desktop/java.awt.Component.dispatchEvent(Component.java:4833) java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773) java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722) java.desktop/java.awt.EventQueue$4.run(EventQueue.java:716) java.base/java.security.AccessController.doPrivileged(AccessController.java:399) java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97) java.desktop/java.awt.EventQueue$5.run(EventQueue.java:746) java.desktop/java.awt.EventQueue$5.run(EventQueue.java:744) java.base/java.security.AccessController.doPrivileged(AccessController.java:399) java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:743) java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
EDITED: after the crash, I closed it down, then loaded a backup save, as the one I was working on was corupted, I made some changes and saved, then loggeged into the game but it wouldnt load, so I loaded back up the ADE and this is what I see, and every time now no matter if I close out of the program or not it will do this, I had to remove ADE, then grab a fresh copy and that worked.
AutoDriveEditor v1.0.9