Minimal Theme - Dynamic Checkout Buttons Disappearing on Product Page

Hello~ Came on here to ask if there’s anyone who also encountered my problem.

Here’s a link to our website: https://gainexpress-dealer.com/

As the subject says, the dynamic checkout buttons on our product pages aren’t properly displaying for some reason. I know they appeared fine before.

What’s weird was it was kind of resolved when I added something to my cart, but I know that shouldn’t even be considered a solution.

I know the theme is very old already, so I have no idea to ask help from or if they can fix this fast.

Hi there! Do you know how I can contact them? Thanks.