Are you sure to delete them?
You tried to delete multiple files and folders.
To delete files and folders on a cloud service, tap the [Delete from all device] button. If you use the ScanSnap Sync function with multiple devices, tap the [Delete from all device] button to delete files and folders from all devices.
To delete files and folders only in your mobile device, tap the [Delete from this device] button.
To keep files and folders, tap the [Cancel] button.