How can i translate this plug in?

Hi Stephany.

Changing field labels, submit button, success/error messages/etc. is on the to-do list for future versions of the plugin.

You can see the entire list on Github: https://github.com/yikesinc/yikes-inc-easy-mailchimp-extender/issues?direction=desc&sort=created&state=open

You can also suggest new features as well.

Thanks!