Cant get events plus working properly with paypal integration

2 things... I cant seem to get the buttons to appear on the event info page above so that a user can join an event and then subsequently pay for it via paypal? I have added the paypal email etc into the correct fields but nothing seems to be working.

Could you pls take a look and set it up so a user can view the even page after clicking on the main calendar and then join the event and pay.

Many Thanks... i have given access to the site.