Not working

I don’t think I’ll be answered since I see posts from more than a month ago, but, anyway, I would like to join the crowd. The plugin is not working anymore. It doesn’t add emails to groups in Mailchimp. I had five set of rules and they were all fine. I didn’t need more, today I tried to add a new one, it is not working (with the same config of previous ones) and I see I am not alone in this. If possible, help me.