Hello J,
Thanks for writing in! I have check your site and I found the issue. To resolve your issue, please add the following CSS code in the X > Theme Options > Global CSS (http://prntscr.com/evui3r)
form.cp-form.smile-optin-form {
margin-bottom: 0;
}
After doing the site changes and update, always remember to clear all caches (since you are using W3 Total Cache plugin) when updating so that the code from the latest release is always in use. This will help you to avoid any potential errors. And please clear your browser cache too. You may use private browsing mode in testing your site to make sure that you are viewing the latest codes from the updates and not the cached version in your browser.
We would love to know if this has worked for you. Thank you.