%link% in the url

Hi, as you can read here https://ww.wp.xz.cn/support/topic/link-after-url?replies=2 i have a %link% after url of my site evidenced in google webmaster tools.
Searching %link% in the code of my plugins i found that in adrotate-setup.php there is
$bannercode = str_replace(‘%link%’, $advert->link, $bannercode);

Can anyoune tell me if this can be the problem?

i have this problem from last update on 6th december.
thanks

https://ww.wp.xz.cn/plugins/adrotate/