eM Client not working! What can i do to fix it?

I have downloaded and installed eM Client. When i open the program and select help it asks me for a certificate. I dont have the certificate number. Can this be sent to my Gmail account?

Hello, not quite sure what certificate you’re referring to. After installing the application, you should be able to use all features for limited 30 days, after this period the application requires a valid license, which you can obtain on our website - more information here: http://www.emclient.com/pro-vs-free or here http://www.emclient.com/pricing