Need help setting up connection between PayPal & Klaviyo

Hi guys I’m really new to automation and it has my head spinning. I’ve setup a PayPal subscription button on my website and I would like PayPal to send the email address of each person as they subscribe to klaviyo and then klaviyo would use those email addresses to send the subscribers an email containing a link to the page where they can download the subscription items. I used the Ai to create a scenario but I’m getting an error on PayPal side when testing it. I tried to follow how to create the make app in PayPal from the help page but it seems to be outdated as the images are different from what I’m seeing in PayPal. Is there anyone who could help me with this setup please?