All items in one or more Groups of files are checked
At Repeated Files, you are trying to Move or Delete files, but you checked all items (files) in one or more Groups of files, and at least one item per Group should remains intact (because at least one item per Group should be the Original file). If you move all files in a Group to other location, you may get conflicts from moving the original file to other location (but this can be fixed restoring the original file back to original folder). But if you delete all items in a Group of files, it means no original file will be available.
Please make sure this is really what you want to do. Answer Yes to continue, No to cancel command and revise items to process.
Comparator Fast will set the first invalid group as current focused row in results. See the Log for a complete list of all invalid Groups found.