<SDLErrorDetails time="2/20/2020 2:19:42 PM">
  <ErrorMessage>Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index</ErrorMessage>
  <Exception>
    <Type>System.ArgumentOutOfRangeException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <ParamName>index</ParamName>
    <HelpLink />
    <Source>mscorlib</Source>
    <HResult>-2146233086</HResult>
    <StackTrace><![CDATA[   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at Sdl.TranslationStudio.Editor.TranslationMemory.ConcordanceSearchViewPartControl.GetCascadeEntry(Int32 cascadeEntryIndex)
   at Sdl.TranslationStudio.Editor.TranslationMemory.CompoundTranslationMemorySearchResultsControl.SetSearchResults(SearchResults searchResults)
   at Sdl.TranslationStudio.Editor.TranslationMemory.CompoundTranslationMemorySearchResultsControl.SetSearchResults(SearchResults searchResults, IEnumerable`1 cascadeMessages)
   at Sdl.TranslationStudio.Editor.TranslationMemory.ConcordanceSearchViewPartControl.UpdateContent()
   at Sdl.TranslationStudio.Editor.TranslationMemory.ConcordanceSearchViewPart.HandleTranslationProviderChanged()
   at Sdl.TranslationStudio.Editor.TranslationMemory.ConcordanceSearchViewPart.TranslationProvider_CascadesChanged(Object sender, EventArgs e)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at Sdl.TranslationStudio.Editor.TranslationMemory.EditorTranslationProvider.ResetTranslationMemories()
   at Sdl.TranslationStudio.Editor.TranslationMemory.EditorTranslationProvider.CascadeItem_CascadeItemChanged(Object sender, CascadeItemChangedEventArgs e)
   at Sdl.ProjectApi.ProjectCascadeItem.OnCascadeItemChanged(ProjectCascadeItem oldCascadeItem, ProjectCascadeItem newCascadeItem)
   at Sdl.TranslationStudio.ProjectManagement.Settings.TranslationMemoriesSettingsPage.Save()
   at Sdl.Desktop.Platform.Implementation.Settings.AbstractSettingsHost.OnSave(Boolean validateInput)]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>SDL Trados Studio</ProductName>
    <ProductVersion>15.0.0.0</ProductVersion>
    <EntryAssemblyFileVersion>15.2.5.2145</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 10 Pro</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1033</OperatingSystemLanguage>
    <CodePage>1256</CodePage>
    <LoggedOnUser>ADMINSAM\Ahmed</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>ADMINSAM</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>50276084 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>