Null error continues, update did not fix, I reallly want it to work

I really want this to work. And I can’t find a place to contact chimport privately (service personnel please contact me). But I am continuously getting the null error (the one the update describes as being fixed). I don’t understand according to the reviews (some as recent as May 2014) why it works for some people and not others? Is it because I have the latest Mac software 10.9.3, and supposedly the last update was for 10.6? Please advise.

transfixed about MailChimp Import