2014-09-30 14:54:37,355 ERROR agnolia.ui.framework.app.AppInstanceControllerImpl: Sub-app detail failed to start: null
java.lang.NullPointerException
	at info.magnolia.ui.contentapp.availability.IsNotVersionedDetailLocationRule.isAvailableForItem(IsNotVersionedDetailLocationRule.java:56)
	at info.magnolia.ui.api.availability.AbstractAvailabilityRule.isAvailable(AbstractAvailabilityRule.java:53)
	at info.magnolia.ui.framework.availability.AvailabilityCheckerImpl.isAvailable(AvailabilityCheckerImpl.java:104)
	at info.magnolia.pages.app.editor.PagesEditorSubApp.updateActionbar(PagesEditorSubApp.java:477)
	at info.magnolia.pages.app.editor.PagesEditorSubApp.doGoToLocation(PagesEditorSubApp.java:244)
	at info.magnolia.personalization.editor.PersonalizationPagesEditorSubApp.doGoToLocation(PersonalizationPagesEditorSubApp.java:102)
	at info.magnolia.pages.app.editor.PagesEditorSubApp.goToLocation(PagesEditorSubApp.java:238)
	at info.magnolia.pages.app.editor.PagesEditorSubApp.start(PagesEditorSubApp.java:199)
	at info.magnolia.personalization.editor.PersonalizationPagesEditorSubApp.start(PersonalizationPagesEditorSubApp.java:88)
	at info.magnolia.personalization.editor.PersonalizationPagesEditorSubApp.start(PersonalizationPagesEditorSubApp.java:55)
	at info.magnolia.ui.framework.app.AppInstanceControllerImpl.startSubApp(AppInstanceControllerImpl.java:385)
	at info.magnolia.ui.framework.app.AppInstanceControllerImpl.openSubApp(AppInstanceControllerImpl.java:341)
	at info.magnolia.ui.framework.app.BaseApp.start(BaseApp.java:71)
	at info.magnolia.ui.framework.app.AppInstanceControllerImpl.start(AppInstanceControllerImpl.java:222)
	at info.magnolia.ui.framework.app.AppControllerImpl.doStartIfNotAlreadyRunning(AppControllerImpl.java:257)
	at info.magnolia.ui.framework.app.AppControllerImpl.onLocationChanged(AppControllerImpl.java:337)
	at info.magnolia.ui.api.location.LocationChangedEvent.dispatch(LocationChangedEvent.java:64)
	at info.magnolia.ui.api.location.LocationChangedEvent.dispatch(LocationChangedEvent.java:42)
	at info.magnolia.event.SimpleEventBus.fireEvent(SimpleEventBus.java:78)
	at info.magnolia.ui.api.location.LocationController.goToWithoutChecks(LocationController.java:103)
	at info.magnolia.ui.api.location.LocationController.goTo(LocationController.java:97)
	at info.magnolia.module.workflow.action.PreviewPageAction.execute(PreviewPageAction.java:56)
	at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62)
	at info.magnolia.ui.admincentral.shellapp.pulse.item.detail.AbstractPulseDetailPresenter.onActionbarItemClicked(AbstractPulseDetailPresenter.java:155)
	at info.magnolia.ui.actionbar.ActionbarPresenter.onActionbarItemClicked(ActionbarPresenter.java:205)
	at info.magnolia.ui.actionbar.ActionbarViewImpl$1.actionTrigger(ActionbarViewImpl.java:67)