Social Media Icons Not Showing

I tried adding the social media icons via the UF code editor after dragging the code element to the third column on my footer region, but nothing is showing up, despite following and doing all Nastia taught here: Nastia’s Thread on Adding Social Media Icons

Could you kindly peek into my site through the granted support access and help me identify why it is not showing? That would help greatly.

Thank you Support Superheroes and Staff alike! =D