Can't Resume Decryption of External HD

I was in the process of decrypting an external USB HD when my house lost power.  Now that power is restored.... I went to resume the decryption process with no success.  This is what I have done so far.......any and all help would be greatly appreciated:

1. Command line Status of External Drive:

• pgpwde --status --disk 1
  Disk 1 is instrumented by bootguard.
    Encryption (Decryption) process was interrupted improperly, possibly by BSOD or power failure.
    Current key is valid.
  Drive encrypted
    Total sectors: 976773168 highwatermark: 640700457 

1. Attempted to resume decryption via command line:

• pgpwde --resume --disk 1 -p PASSPHRASE
  Operation resume encrypt or decrypt failed:
  Error code -12000: bad parameters

1. Attempted to start new decryption process:

• pgpwde --decrypt --disk 1 -p PASSPHRASE
  Operation start decrypt disk failed:
  Error code -11959: disk locked

1. Displayed config of disk:

• pgpwde --show-config --disk 1
           Login Message: 
  Display Startup screen: No
    Display Machine Name: Yes
            Machine Name: 
       Use Audio Prompts: No
            User lockout: Disabled
      Allow user decrypt: Yes
  Request sent to Show configuration information was successful

1. I only have one user associated to this disk:

• pgpwde --list-user --disk 1
  Total of 1 user:
    User  1: Name: USERNAME Type: Symmetric
  System Record Information:
        Disk UUID: e6e58907-0022-4145-afa3-fb79589bdf69
       Group UUID: 00000000-0000-0000-0000-000000000000
  Attribute Information:
    S = SSO, O = Offloaded, L = Locked out, A = Anti Theft, M = Managed Admin
    LSR = Local Self Recovery Available
  Request sent to List users on disk was successful