Shortcode is not working

my website is https://onlineiptv.net/wp

how to add short code there?
your short code is
[accept_stripe_payment name=”Cool Script” price=”50″ url=”https://example.com/downloads/my-script.zip” button_text=”Buy Now”]

and i am adding this
[accept_stripe_payment name=”Cool Script” price=”50″ url=”https://onlineiptv.net/wp/downloads/my-script.zip” button_text=”Buy Now”]

What do you get where the shortcode is? Does it show anything or it just shows the shortcode text? Does other shortcode on your site work?