How to use subscription form
The subscription form:
Step 1: You need go https://mailchimp.com/ and sign up account.
Step 2: Just go to your Mailchimp list -> "Signup forms" -> "Embedded forms" and then take form action url in the embed code http://prnt.sc/7lieht
Step3: Go Appearance > Widgets > Footer widget 4 > Inwave Subscribe
Paste url action (step2) to Action Url
We hope it help you