when I try to run node I get this
Unhandled Exception: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at minerstat.Program.Add(Object sender)
at minerstat.Program.Main(String[] args)

what do you think
you deleted some string from config.txt, all varibles needed !!
dont delete anything, there's sample at the website, just use YES / NO.