My sns links lead to homepage and other button doesn't work properly

I’m having trouble with my link buttons on my site.
There are two problems

  1. When I click my IG and LinkedIn links on About me section, they lead to the main page.

  2. Link buttons in the footer for connecting to email/ instagram/ LinkedIn cannot be pressed.
    I have made the footer with sticky position, maybe this could be the reason? If so, how do I resolve this?

Below is my read-only site

Thank you so much for your help!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)