Problem with John the Ripper

Sorry I am very new to pen testing and I'm practicing on my own virtual boxes. With this being said I'm trying to crack a password given from a "hashdump" while in a meterpreter shell. From the terminal I've executed the command john /root/admin.txt, the admin.txt file contains the following text "Administrator::aad3b435b51404eeaad3b435b51404ee:3 1d6cfe0d16ae931b73c59d7e0c089c0:::". Once this command is run I get a "Warning: detected hash type 'lm', but the string is also recognized as 'nt', Use the '--format=nt' option to force loading theses as that type instead and Warning: detected hash type 'lm', but the string is also recognized as 'nt2', use the '--format=nt2' option to force loading these as that type instead.

Any help on why john the ripper is not cracking and displaying this password would be MORE than greatly appreciated! :D