Hover box buttons not working

Hello guys,

I have a problem on our website, i use theme Aurum and i use visual composer. I added some hover boxes with buttons and external links but it doesn’t work as it should. I can click on those buttons in google chrome, but it doesn’t work on safari and on mobile devices neither.

Can you help me with that?

Thank you

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