Redirect Hack on my website

Hello,

I’am webmaster but i’am not a pro in php. I can see that in my website i have a hack redirect on my hompage http://www.transition-isolation.fr

I didn’t find any plugin who can repear it.

I would like someone help asap, i can paye for it. [email protected]

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