Icon menu missing links on Android and Safari 5 (OS)

The icons in the icon menu (fa-icons) are not linked with the related pages anymore in Safari 5.1.10 (6534.59.10) (OS) nor in Chrome on Android.

The icons are not active. The navigation labels however are. In some cases, the icons become ative after hovering over the labels.

The phenomenon can easily be reproduced by opening the website govpress.co in one of the above mentioned browsers.