Studio 2014 won't open

I can't open SDL Trados 2014. When I try to open , it quits unexpectedly and I get the attached message. What can I do? (I already restored the application and framework)

<?xml version="1.0"?>

<SDLErrorDetails time="25/05/2016 13:43:13"><ErrorMessage>Exception has been thrown by the target of an invocation.</ErrorMessage><Exception><Type>System.Reflection.TargetInvocationException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type><HelpLink/><Source>mscorlib</Source><HResult>-2146232828</HResult><StackTrace>

<![CDATA[ at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture) at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index) at Sdl.Desktop.Common.DataListRow.Data.get_Item(String dataMember) at Sdl.Desktop.Common.DataList.<>c__DisplayClassc.<QuickSortUsingLinq>b__5(DataListRow x) at System.Linq.EnumerableSorter`2.ComputeKeys(TElement[] elements, Int32 count) at System.Linq.EnumerableSorter`1.Sort(TElement[] elements, Int32 count) at System.Linq.OrderedEnumerable`1.<GetEnumerator>d__0.MoveNext() at System.Linq.Buffer`1..ctor(IEnumerable`1 source) at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source) at Sdl.Desktop.Common.DataList.QuickSort(DataListRowCollection rows, DataListColumn groupColumn, DataListColumn sortColumn, SortOrder sortOrder) at Sdl.Desktop.Common.DataList.SortHierarchical() at Sdl.Desktop.Common.DataList.Sort() at Sdl.Desktop.Common.DataList.DataBind() at Sdl.Desktop.Common.DataList.DataBindBindingList() at Sdl.Desktop.Common.DataList.set_DataSource(Object value) at Sdl.TranslationStudio.Common.Files.FileListControl.SetProjectFiles(IProjectFile[] projectFiles) at Sdl.TranslationStudio.Common.Files.FileListControl.set_ProjectFiles(IProjectFile[] value) at Sdl.TranslationStudio.Common.Files.FileDataController.SetFileListContents(Folder selectedFolder) at Sdl.TranslationStudio.ProjectManagement.FilesView.FilesViewService.MyFileDataController.SetFileListContents(Folder selectedFolder) at Sdl.TranslationStudio.Common.Files.FileDataController.RefreshFileList() at Sdl.TranslationStudio.Common.Files.FileDataController.TryLoadData() at Sdl.TranslationStudio.Common.Files.FileDataController.set_FileData(IFileData value) at Sdl.TranslationStudio.Common.Files.ProjectFileDataController.set_FileData(ProjectFileData value) at Sdl.TranslationStudio.ProjectManagement.FilesView.FilesViewService.UpdateDetails() at Sdl.TranslationStudio.ProjectManagement.FilesView.FilesViewService.Refresh() at Sdl.TranslationStudio.ProjectManagement.FilesView.FilesView.Refresh() at Sdl.Desktop.Platform.AbstractView.Application_Idle(Object sender, EventArgs e) at System.EventHandler.Invoke(Object sender, EventArgs e) at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at Sdl.Desktop.Platform.Implementation.Studio.Run() at Sdl.TranslationStudio.Application.Launcher.RunApplication()]]>

</StackTrace><InnerException><Type>System.FormatException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type><HelpLink/><Source>mscorlib</Source><HResult>-2146233033</HResult><StackTrace>

<![CDATA[ at System.Text.StringBuilder.AppendFormat(IFormatProvider provider, String format, Object[] args) at System.String.Format(IFormatProvider provider, String format, Object[] args) at System.String.Format(String format, Object[] args) at Sdl.ProjectApi.Helpers.AbstractConfirmationStatistics.ComputeCombinedConfirmationLevel() at Sdl.ProjectApi.Helpers.AbstractConfirmationStatistics.get_PercentComplete() at Sdl.TranslationStudio.Common.Files.FileListItem.get_PercentComplete()]]>

</StackTrace></InnerException></Exception><Environment><ProductName>SDL Trados Studio</ProductName><ProductVersion>11.0.0.0</ProductVersion><EntryAssemblyFileVersion>11.2.4435.12</EntryAssemblyFileVersion><OperatingSystem>Microsoft Windows 7 Professional </OperatingSystem><ServicePack>Service Pack 1</ServicePack><OperatingSystemLanguage>1040</OperatingSystemLanguage><CodePage>1252</CodePage><LoggedOnUser>ProDesk-308\TRADOS</LoggedOnUser><DotNetFrameWork>4.0.30319.18063</DotNetFrameWork><ComputerName>PRODESK-308</ComputerName><ConnectedToNetwork>True</ConnectedToNetwork><PhysicalMemory>8315080 MB</PhysicalMemory></Environment></SDLErrorDetails>

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