diskinternals linux reader cannot open disk

The request could not be performed because of an I/O device error, again. However since the early hours of this morning it began returning the Read disk XXX at position XXXXX failed after 1 attempts. I have since removed and reinserted the HDD into the other dock and tried creating an image again, this time it began working and until today looked ok. Test Error Code:Đ6-Quick Test on drive 8 did not complete! Status code = 07 (Failed read test element), Failure Checkpoint = 105 (Unknown Test) SMART self-test did not complete on drive 8! I then tried R-linux to try and recover damaged partitions, in running “open drive files” the programme generated errors in trying to read the disk (see screenshot below). Using that I scanned the drive and selected “Yes” Thinking I had a damaged partition I then downloaded DiskInternals Partition Recovery If I try to access these files through DI Reader I get the error I first tried Linus DiskInternals Reader to copy the data, the programme read the drive as I'm using windows 10 Pro on an Intel Core i5-6400 CPU, 64-bit OS, 圆4-based processor. Prior to this I first tried Disk Internals to try and read the drive

I have a WD My Book Live 3TB that has failed, I've removed the HDD mounted it into a dual USB3 dock and am 3 days into a 41 day clone of the drive. I'm in the process of creating a disc image and I'm reviewing whether to continue or not, any advice on what you would do in this situation would be greatly appreciated.

Diskinternals linux reader cannot open disk