Want to add Paypal smart payments buttons but the code has dissapeared

[KarneroDaSilva]

Hi,

Ive tried to setup those smart buttons but when I finished it, exit from the page or even refresh the product edit page, the code disappears.

What can I do to solve it?

[Zworthkey]

@KarneroDaSilva 
so kindly Share your store Url So we will help you.

Thank you.