PayPal 'Buy Now' is not working on mobile

[nfletch]

Client has set up a simple "Buy Now" button. PayPal works on desktop, but not on mobile - on mobile it takes one to Log In, but no cart amount is displayed. Looking for solution - or to be pointed to a solution - to get this to work. Thanks  Site with the issue: ginasbooks.com 

[Anonymous_User]

Which device and browser is the button not working with ?

Just tried the site on an iPhone 6+ (IOS 11.3.1) using Safari - worked perfectly fine.

And no issues with using a desktop running Windows 10 - tested Firefox, Chrome, IE and Edge - all worked great.