Workflow Add-On; Task Manager, Opening the Task Manager displayed error in Debug Window.

If you have the Workflow Add-On, then when opening the Task Manager the following error occurred in the Debug Window:

'Failed to execute Summary Page Script 'BuiltIn.SummaryPage_TaskManager_FoldersSummary. Key does not exist is collection'

The following inbuilt script has been updated:

SummaryPage_TaskManager_FoldersSummary.