Starting Point Archetype

when running the nmap scan right off the bat i cant get it to display all the information that is shown in the walkthrough. when i run it with the -d flag i find this:
NSE: ms-sql-ntlm-info against threw an error!
/usr/bin/…/share/nmap/nselib/mssql.lua:3334: bad argument #1 to ‘ipairs’ (table expected, got nil)
stack traceback:
[C]: in function ‘ipairs’
/usr/bin/…/share/nmap/nselib/mssql.lua:3334: in function </usr/bin/…/share/nmap/nselib/mssql.lua:3327>
(…tail calls…)

not nearly experienced enough with code to be able to figure this one out. pretty frustrating