I guess you want to write loot_data and not row, actually the next exception is raised:

```
msf auxiliary(jtr_aix) > run

[*] Seeding wordlist with DB schema info... 0 words added
[*] Seeding with MSSQL Instance Names....0 words added
[*] Seeding with hostnames....0 words added
[*] Seeding with found credentials....22 words added
[*] Seeding with cracked passwords from John....0 words added
[*] Seeding with default John wordlist...88395 words added
[*] De-duping the wordlist....
[*] Wordlist Seeded with 88407 words
[-] Auxiliary failed: NameError undefined local variable or method `row' for #<Msf::Modules::Mod617578696c696172792f616e616c797a652f6a74725f616978::Metasploit3:0x007f9c14643270>
[-] Call stack:
[-]   /Users/juan/Projects/git/metasploit-framework/modules/auxiliary/analyze/jtr_aix.rb:63:in `run'
[*] Auxiliary module execution completed

```