Seamless skin

Hello, I have just purchased the addon Seamless skin, but I have now a problem.
First when I have 2 hover icons, they are at the same place, so I see something bad :/

How can I do ?

And if I hide the secondary icon, it’s still here…

Here is my url :
http://rcgrasse.apps-1and1.net/equipes/

https://wordpress.org/plugins/nimble-portfolio/