Social Media Block is invisible

I recently noticed that the social media blocks on my site are not visible. The blocks are still placed — I can tell because the links are still there. However, regardless of which color style I use, the icons in the block are not visible. Any help in fixing this issue is greatly appreciated. See attached. The block is circled in red.

Thanks!

Kevin

Hi Kevin! Can you share your website URL?

Sure! https://tj-english.com/

That's really odd! 

Do you have any code, CSS, code injection etc?

I do, but none specific to the social icons

Also, it shows up when editing the header

I can't see the problem, I would suggest that you contact Squarespace Support since I can't see why they're not showing.

Thank you.