The link you followed will bring you to this page:

https://www.vivaticket.com/it/search?q=56%C2%B0%20festival%20jazz&tab=shows&queueittoken=e_vivaticketstore~q_cfce0ea0-482d-4402-a0d4-2efe94cefb76~ts_1716211057~ce_true~rt_safetynet~h_18f4ea017d027d217d7045190d7b7359923cbda2029864d118b7c7e1329e4f9b