Changes

     for k,v in pairs(frame.args) do

     for k,v in pairs(frame.args) do

         if string.lower(k) ~= "boss_node" and string.lower(k) ~= "final_form" and string.lower(k) ~= "post_final_form" then

         if string.lower(k) ~= "boss_node" and string.lower(k) ~= "final_form" and string.lower(k) ~= "post_final_form" then

             local letter = mw.text.split(k,"")[1]

             local nodestuff = mw.text.split(k,"_")[0]

             local num = mw.text.split(k,"")[2]

             local letter = string.sub(nodestuff,1,-2)

             if letter == 'z' then

             local num = string.sub(nodestuff,-1,-1)

            val = string.find(k, "-")

 

            letter = mw.text.split(k, "-")[1]

            num = mw.text.split(k, "")[val + 1]

             if validNodeLetters[letter] then

             if validNodeLetters[letter] then

                 mapEncounterTable[letter] = {}

                 mapEncounterTable[letter] = {}