social icons not working since 19.3.3

social icons are not working and I don’t understand the instructions on https://themeid.com/docs/update-1-9-3-3/

how do I move the images and the icon folders into the /core folder?

Tried it by ftp

Tried it by updating my child-theme’s css to match https://github.com/cyberchimps/responsive-childtheme/blob/c1d01762aa4324780632c21d74d7363265362dd0/style.css

my site: https://www.globalbeatz.nl