Updated theme & menu icons no longer working

My site is http://www.selfawakened.com and I just updated my highend theme but now a few of my menu icons are no longer showing. If you look at the drop downs under Services and Shop, you’ll see the last menu item or two isn’t showing an icon. When I add the code for the icon and hit save in the dashboard backend, the page refreshes but the code just seems to disappear. Please help