NPE When opening project in 8.1.3

"Internal Error Occured" - pops up when opening project.

update failed for AnAction with ID=Gauss.TestDox.SortTestDox
java.lang.NullPointerException
at org.codehaus.testdox.intellij.actions.BaseToggleAction.update(BaseToggleAction.java:23)
at com.intellij.openapi.actionSystem.impl.Utils.a(Utils.java:72)
at com.intellij.openapi.actionSystem.impl.Utils.expandActionGroup(Utils.java:42)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.updateActionsImmediately(ActionToolbarImpl.java:286)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.f(ActionToolbarImpl.java:117)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.<init>(ActionToolbarImpl.java:326)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.createActionToolbar(ActionManagerImpl.java:55)
at org.codehaus.testdox.intellij.TestDoxProjectComponent.createToolBar(TestDoxProjectComponent.java:139)
at org.codehaus.testdox.intellij.TestDoxProjectComponent.projectOpened(TestDoxProjectComponent.java:91)
at com.intellij.openapi.project.impl.ProjectImpl.c(ProjectImpl.java:10)
at com.intellij.openapi.project.impl.ProjectImpl.access$300(ProjectImpl.java:35)
at com.intellij.openapi.project.impl.ProjectImpl$MyProjectManagerListener.projectOpened(ProjectImpl.java:6)
at com.intellij.openapi.project.impl.ProjectManagerImpl$2.projectOpened(ProjectManagerImpl.java:20)
at com.intellij.openapi.project.impl.ProjectManagerImpl.d(ProjectManagerImpl.java:341)
at com.intellij.openapi.project.impl.ProjectManagerImpl.openProject(ProjectManagerImpl.java:295)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:331)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:59)
at com.intellij.ide.impl.ProjectUtil.openProject(ProjectUtil.java:68)
at com.intellij.ide.RecentProjectsManager.doOpenProject(RecentProjectsManager.java:5)
at com.intellij.ide.RecentProjectsManagerBase$ReopenProjectAction.actionPerformed(RecentProjectsManagerBase.java:4)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem$ActionTransmitter.actionPerformed(ActionMenuItem.java:17)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem.fireActionPerformed(ActionMenuItem.java:41)
at com.intellij.ui.plaf.beg.BegMenuItemUI.a(BegMenuItemUI.java:65)
at com.intellij.ui.plaf.beg.BegMenuItemUI.access$300(BegMenuItemUI.java:129)
at com.intellij.ui.plaf.beg.BegMenuItemUI$MyMouseInputHandler.mouseReleased(BegMenuItemUI.java:5)
at java.awt.Component.processMouseEvent(Component.java:6263)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6028)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at com.intellij.ide.IdeEventQueue.c(IdeEventQueue.java:35)
at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:223)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:217)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)