The link you followed will bring you to this page:

https://apps.feriavalencia.com/tickets/show/8NkT4o6YMh7IEQz7ZQRDqWJRDWPAY7w2CaasBRKvsluZi0z2vo/inv/wraUM6nVSbXgN8cfP8NVF2uAgNFKLMIW8c3jUawThQVYJPqMEz