Disk Access Errors (40-56)
Errors 40-56 indicate that Drive Image cannot access your hard disk; these errors are often reflect hardware problems. Some problems have simple solutions; for other problems, the only solution is to replace the hard drive. When possible. Drive Image detects errors before any changes have been made, so you can back up your data before replacing the hard drive.
It may not be much help, but the above is PQ's 'help' on the relevant error code!