Icons not showing as described, esp LinkedIn

Hi, two issues:
– I selected the default icon set for LI, FB, TW because I want people to be able to share the website page to those platforms. The default icon set is shown as round, but they are appearing as rectangles.
– Instead of the LI icon, it’s showing the “Follow email” one.

Please help.

The page I need help with: [log in to see the link]