Fix issues with items not having a value

diff --git a/Monomyth.lua b/Monomyth.lua
index d234d8a..60e7952 100644
--- a/Monomyth.lua
+++ b/Monomyth.lua
@@ -87,7 +87,9 @@ addon:Register('QUEST_COMPLETE', function()
 			end
 		end

-		_G['QuestInfoItem' .. bestIndex]:Click()
+		if(bestIndex) then
+			_G['QuestInfoItem' .. bestIndex]:Click()
+		end
 	end
 end)