Hover over button

Hi,

Im trying to set a hover change on color in the background of a button but when I hover it the font color dosen´t change also, just when I specifically hover over the link. Same with the icon.

Button no hover> http://prnt.sc/r1vkw1
Button hover> http://prnt.sc/r1vlhv
Button link hover> http://prnt.sc/r1vlp6

Thanks in advance!

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