rel='nofollow' footer link

Hi Guys, awesome theme,

I want to nofollow the footer link, when I insert rel=’nofollow’ into the footer it crashes the entire footer.

this link is the one

Thank You.

// you can filter and remove the backlink with an add_filter function
// from your themes (or child themes) functions.php file if you dont want to edit this file
// you can also just keep that link. I really do appreciate it ;)
$kriesi_at_backlink = apply_filters(“kriesi_backlink”, ” – Enfold Theme by Kriesi“);