Uncaught ReferenceError: Cookies is not defined

I am trying to build an optin form on a site where I also try to develot a section with woocommerce.

WOW Viral Signup Pro is not working on https://www.absolutindie.com/signup_usradio/. I get the following error code in the JavaScript console:

Uncaught ReferenceError: Cookies is not defined
at HTMLDocument.<anonymous> (woocommerce.min.js?ver=3.2.1:1)
at i (jquery.js?ver=1.12.4:2)
at Object.fireWith [as resolveWith] (jquery.js?ver=1.12.4:2)
at Function.ready (jquery.js?ver=1.12.4:2)
at HTMLDocument.K (jquery.js?ver=1.12.4:2)

… and when I try to write my email address and press submit, the above code is followed by:

Uncaught ReferenceError: hvost is not defined
at mpwsignup (script.js?ver=4.8.2:54)
at HTMLButtonElement.onclick ((index):630)

I was told to inactivate Woocommerce and try again but it was the same problem when I tried the page without woocommerce activated.

Any idea of how to make the form work?

The page I need help with: [log in to see the link]