Buy Course Button Missing in one specific course page

Hello,

I sell two courses on my site and one of them the buy button is not appearing. Something that I noticed is that the button is missing only when i’m not logged in. So, if i’m logged in on my admin account I can see the Buy Button but visitor not logged in can’t see the button.

Otherwise, with my second course page everything is fine, I can see the buy button logged in or not logged in. So that I can sell normally to visitors.

Course page with Buy Button problem: https://dicasdeaposta.com.br/cursos/9-maneiras-de-vencer-a-bet-365-apostar-em-futebol/

Course page that is not facing the Buy Button problem:
https://dicasdeaposta.com.br/cursos/9-maneiras-de-vencer-a-bet365-3-meses-grupo-vip/

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