Clickable Thumbnals link issue

Hi, i have a probleme with the Thumbnals.
I want to make them Clickable but i run in to some problems by trying implement the support you gave on the support topic below:

https://ww.wp.xz.cn/support/topic/how-can-i-make-thumbnails-clickable-2/

I created a child them and copied the content-product.php sheet to it.

When i put your code in there, the thumbnails are clickable (beside the first product). The probleme is the link redirects me to the product befor the clicked product. Could you please help me?

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