The above alert usually occurs when a user (using NFuse) right clicks a citrix application and saves the ica file. By default the ticket will expire after 200 seconds. To replicate the above error, save the ica file to your desktop and launch after 5 minutes, you should receive the same error as above within your server event log.
Citrix Ticket Logon attempted on expired ticket
Reading Time: < 1 minute
Thankyou very much!