assistance with lua code in a wow - lua

heres the problem
error T_T
its telling me that i have this problem cant figure it out. any help is appreciated
also not that great with lua but willing to try my best to figure it out. im try to rez this old addon which i really liked
okay heres that full "core.lua"
it is basically a addon for wow that talks and reponds (mostly yes / no questions)
i think its getting this error because, i read somewhere that they took arg1 out, so im not sure what to put there. might take it to a different website, just wasnt sure where to post it at first. i will go to wowace, wowprogramming.com and post there
pastebin(core.lua)

Try to delete line 608 :)
When started addon register a wisp event, and does not give parameters... If it is just a mistake or something, it'll work, but i can't just recode all of it =) Try to contact :
Stewart (01satkins#gmail.com) http://www.stewartatkins.org/
As said in code =)

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