How can I disallow an internal link without editing robots.txt?

Site URL: https://www.nembol.com/

Hi everyone.  I'm looking for a way to disallow Google from following the links in our footer.

I cannot use the nofollow attribute as the links point to internal pages, and Google suggests to use the disallow command for robots.txt.

Unfortunately, on Squarespace you can't edit the robots.txt file, am I correct?

So, how can I disallow those links in the footer?

Thank you very much.