According to the file listing "Windows 8 Pro x64-s005.vmdk" as well as "Windows 8 Pro x64-s008.vmdk" have a size of zero, i.e. they are empty/corrupt. From the log file it loks like tere was an issue after you added some Bluetooth USB device (a lot of READ/WRITE issues).
You could try to restore the 2 files from your latest backup or - if this is not possible - copy one of the 327,680 Bytes files and replace these two files. Both approaches will certainly cause more or less data corruption in the guest. However, you should be able to map the .vmdk file to extract data.
André