local tmp = readLine():sub(1,-3)
    if tmp == nil then return false end
    data = split(tmp, ":")
    cmd = split(data[2], " ")
    if string.lower(cmd[2]) == "ping" then -- <---- here is an error because cmd[2] seems to be nil
      sockWrite("PONG :"..data[2])
    elseif string.lower(cmd[2]) == "privmsg" then