Error in server application '/key4register'

An error occured Your session has expired
2024-05-03 10:14:16 - Server - DNS secure.key4events.com - Register Version 2.47.24
Url reached : https://secure.key4events.com/key4register/UserControl/WebSite/schedule.aspx?e=947&dl=files/presentations/40619/S352AB_V4_INT109.pdf