Error in server application '/key4register'

An error occured Your session has expired
2024-05-14 14:55:02 - Server - DNS secure.key4events.com - Register Version 2.48.28
Url reached : https://secure.key4events.com/key4register/UserControl/WebSite/schedule.aspx?e=163&dl=files/presentations/1797/J4_3_DIDIER_A.pdf