The link you followed will bring you to this page:

https://ecommerce.ciaotickets.com/biglietteria/cercaPostiPub.do?idEvento=89741&backUrl=http%3A%2F%2Fhttps%3A%2F%2Fwww.ciaotickets.com%2Fbiglietti%2Fnasrin-sotoudeh-una-vita-difendere