Submit button on popup form not working

Trying to add a join our mailing list popup for the home page.
Created the mailchimp sign up form and added it to the popup plugin window. However when testing we can fill in the form but the submit button does not do anything?

Here is the code from the Mailchimp for WP plugin form page:
<div class=”news-letter-wrapper”>
<p>Join our Mailing List and stay informed about Sales, New Arrivals and More<p>
<label>First Name:</label>
<input type=”text” name=”FNAME” placeholder=”Your first name” required=”required”>
</p><p>
<label>Last Name:</label>
<input type=”text” name=”LNAME” placeholder=”Your last name” required=”required”>
</p>

<div class=”news-letter-text-box”>
<label>Email:</label>
<input type=”email” id=”mc4wp_email” name=”EMAIL” placeholder=”Type your email” required/>
<button type=”submit”><span></span><p>Subscribe</p></button>
</div><p>
<input type=”submit” value=”Subscribe”>
</p>

</div>

Please help

https://wordpress.org/plugins/mailchimp-for-wp/