Error in server application '/key4register'

An error occured Your session has expired
2024-09-01 06:34:33 - Server - DNS secure.key4events.com - Register Version 2.51.4
Url reached : https://secure.key4events.com/key4register/programme/1627/session/22789-PLENARY-SESSION-/content.aspx?c=16755&culture=en-GB&e=1627