What steps will reproduce the problem?
1. Reputation(Faction(unit=Target))
2. MaxReputation(Faction(unit=Target))
3.

What is the expected output? What do you see instead?
Expect to see reputation value. No value returned as faction was not found based on code.

What version of the product are you using?
r181

Do you have an error log of what happened?
no

Please provide any additional information below.

Seems like a variable name was assumed to be "n" but it should be "name".

On line 20, please change "if faction == n then" to "if faction == name then"
On line 44, please change "if faction == n then" to "if faction == name then"

I made these two changes locally and it works.

For fun, this is the dogtag text I have come to enjoy for my reputation text which allows me to view the reputation for my target NPC before I hit repair on my alts.
It is not optimized but gets me what I want to see at a glance.

[if IsMouseOver then
    ReputationReaction ':' ReputationName
elseif IsFriend(unit=Target) and (Guid(unit=Target) ~= Guid(unit="player")) then
    ReputationReaction(Faction(unit=Target)) ':' Faction(unit=Target) ':' MissingReputation(Faction(unit=Target))
else
    [if ReputationName then
        MissingReputation ' ' PercentReputation:Percent:Paren
    end]
end]