Footer Allignment

Hey there,

These forums are for the self hosted WordPress sites. As I can see, you have a WordPress.com website. You’re better off posting in these forums: https://en.forums.wordpress.com/

As for your question, this custom CSS should do the trick:

.footer-widget-area .widget-wrapper {
    text-align: center;
}

.wf-active .widget-title {
    text-align: center;
}

Here’s how you can add custom CSS on a WordPress.com site: https://en.support.wordpress.com/custom-design/editing-css/
Hope it helps.