I have this 2 huge problems, i will put 2 links show you my problems, and i will upload the images to.
In the firts image, the button "Proceed to payment" does nothing.
1. https://i.imgur.com/BkDRC34.jpg
In the second image, a the bottom you can see the error:
Mixed Content: The page at '
https://gameassetsmarket.com/beta/sellacious/' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint '
https://sellacious.com/index.php?option=com_jarvis&task=site.register'. This request has been blocked; the content must be served over HTTPS.
2. https://i.imgur.com/20HBy3z.jpg