Facebook Power Editor Problem

Hello,
I have been paying optimize power with a campaign editor to replicate kalt??? I'm getting the following error.
How can I fix this problem.
Thanks in advance
Failed to create ad "xxx.com/ – Website Clicks – Ad – Image 5": For ads pointing to an offsite location with a non-zero bid on actions, you must specify the conversion spec.

See original post by Onur Gurel