Wish List Button

Hello,
I’m using Wish Lis Plugin. I’m trying to add it beside Add to Cart. However,it doen’t show up although I have added a URL in My Wish List setting. And also I was trying to preview, an error mesages Can you let me know how to slove the problem

Regards,
Website: https//echolivin.com

https://www.ads-software.com/plugins/my-wish-list/