I know that this has already been addressed, but where do I find that answer?

I can't find folder 12 with the plugins, where is it?

Thanks,

Hans

Error dump below

<SDLErrorDetails time="2017-08-04 13:17:33">
  <ErrorMessage>Key already exists
Parameter name: Key</ErrorMessage>
  <Exception>
    <Type>System.ArgumentException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <ParamName>Key</ParamName>
    <HelpLink />
    <Source>Infragistics4.Shared.v14.2</Source>
    <HResult>-2147024809</HResult>
    <StackTrace><![CDATA[   at Infragistics.Shared.KeyedSubObjectsCollectionBase.ValidateKeyDoesNotExist(String key, IKeyedSubObject ignoreObject)
   at Infragistics.Shared.KeyedSubObjectsCollectionBase.ValidateKey(String key, IKeyedSubObject ignoreObject)
   at Infragistics.Win.UltraWinToolbars.RibbonGroupCollection.AddGroupHelper(RibbonGroup group, Int32 index, Boolean notify, Boolean validateKey)
   at Infragistics.Win.UltraWinToolbars.RibbonGroupCollection.Add(RibbonGroup group)
   at Sdl.Desktop.Platform.WinForms.IgRibbonGroup.Create(INativeCommandBarItemCollection nativeCommandBarItemCollection, Int32 index)
   at Sdl.Desktop.Platform.Implementation.CommandBars.SubCommandBarItem.Create(INativeCommandBarItemCollection nativeCommandBarItemCollection, Int32 index)
   at Sdl.Desktop.Platform.WinForms.IgRibbonTab.UpdateCommandBar(Boolean force)
   at Sdl.Desktop.Platform.WinForms.IgRibbon.UpdateCommandBar(Boolean force)
   at Sdl.Desktop.Platform.Implementation.CommandBars.SubCommandBar.UpdateCommandBar(Boolean force)
   at Sdl.Desktop.Platform.Implementation.CommandBars.SubCommandBars.Update(Boolean force)
   at Sdl.Desktop.Platform.Implementation.CommandBars.SubCommandBars.set_VisibleInParent(Boolean value)
   at Sdl.Desktop.Platform.AbstractViewWithParts.UpdateViewPartCommandBarProviderVisibility()
   at Sdl.Desktop.Platform.AbstractViewWithParts.OnActiveViewPartChanged(IViewPartReference viewPartReference)
   at Sdl.TranslationStudio.Editor.EditorView.OnActiveViewPartChanged(IViewPartReference viewPartReference)
   at Sdl.Desktop.Platform.AbstractViewWithParts.Control_ActiveViewPartChanged(IViewWithParts view, IViewPartReference viewPartReference)
   at Sdl.Desktop.Platform.WinForms.DockingViewContentControl.OnActiveViewPartChanged(IViewPartReference viewPartReference)
   at Sdl.Desktop.Platform.WinForms.DockingViewContentControl.InternalActivateViewPart(IViewPartReference viewPartToActivate)
   at Sdl.Desktop.Platform.WinForms.DockingViewContentControl._tabControl_SelectedTabChanged(Object sender, SelectedTabChangedEventArgs e)
   at Infragistics.Win.UltraWinTabControl.UltraTabControlBase.OnSelectedTabChanged(SelectedTabChangedEventArgs e)
   at Infragistics.Win.UltraWinTabControl.UltraTabControlBase.RaiseEvent(UltraTabControlEventId id, EventArgs e)
   at Infragistics.Win.UltraWinTabControl.UltraTabControlBase.OnManagerSelectedTabItemChanged(Object sender, SelectedTabItemChangedEventArgs e)
   at Infragistics.Win.UltraWinTabs.TabManager.set_SelectedTabItem(ITabItem value)
   at Infragistics.Win.UltraWinTabControl.UltraTabControlBase.SetSelectedTab(UltraTab tab)
   at Infragistics.Win.UltraWinTabControl.UltraTabControlBase.set_SelectedTab(UltraTab value)
   at Sdl.Desktop.Platform.WinForms.DockingViewContentControl.AddViewPartTab(IViewPartReference viewPartReference, DockingViewPartLayoutInfo layoutInfo)
   at Sdl.Desktop.Platform.WinForms.DockingViewContentControl.AddViewPart(IViewPartReference viewPartReference)
   at Sdl.Desktop.Platform.WinForms.DockingViewContentControl.NotifyViewPartAdded(IViewPartReference viewPartReference)
   at Sdl.Desktop.Platform.AbstractViewWithParts.AddViewPart(IViewPartReference viewPartReference)
   at Sdl.Desktop.Platform.AbstractDockingView.AddViewPart(IViewPartReference viewPartReference)
   at Sdl.TranslationStudio.Editor.EditorView.AddDocumentViewPart(IViewPartReference documentViewPartReference)
   at Sdl.TranslationStudio.Editor.Shared.InternalEditorContext.AddDocumentViewPart(IDocumentViewPart documentViewPart)
   at Sdl.TranslationStudio.Api.Editor.AbstractInternalDocument.AfterLoad(IJob job)]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>SDL Trados Studio</ProductName>
    <ProductVersion>12.0.0.0</ProductVersion>
    <EntryAssemblyFileVersion>12.3.5281.10</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 7 Professional </OperatingSystem>
    <ServicePack>Service Pack 1</ServicePack>
    <OperatingSystemLanguage>1053</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
    <LoggedOnUser>hans-Asus-dator\hans</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>HANS-ASUS-DATOR</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>8268724 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>