If for any reason you move to the trash a file or a folder on your File Explorer/Finder, this item will be moved to the Trash on SecureSafe. This item is never permanently deleted unless removed from the Trash Folder on SecureSafe.
Delete any element on your PC/Mac:
After a sync is performed, the item is no longer present on the Safe:
Navigate to the Trash folder, and you will find the item moved to the bin on your PC/Mac:
Only from here can you permanently delete this file or folder.