Error in server application '/key4register'

An error occured Your session has expired
2024-04-16 08:50:15 - Server - DNS secure.key4events.com - Register Version 2.47.22
Url reached : https://secure.key4events.com/key4register/UserControl/WebSite/schedule.aspx?e=984&dl=files/presentations/48208/OC26.pdf