Hello,

You have configured the Footer layout and using the widgets: https://gyazo.com/8bf6fb6e7139d837855cb8bb05481dee

At the same time you are using HTML block: https://gyazo.com/448d917668408cb08148173459d31b93

When I change the configuration and set the HTML block in the Theme Settings > Footer, part of the content is hidden and that should not happen. Most likely, this is caused by the customization in the child theme and third parties plugin.

We can try to detect the reason and configure the footer properly, in this case, I need your permission to deactivate the plugins and switch to the parent theme.

Alternatively, I can just give you custom CSS to hide this gap on mobile:

.footer-column-6,
.footer-column-5{
display:none;
}

Please add this code to the Theme Settings > Custom CSS > MObile/Tablet:

Best Regards