PureMessage quarantine digest

Hi,

i've many error with puremessage and end user, when they click on the link in mail they can't delete, deliver or change page.

When they try there is a message :

Unable to display the items in the quarantine.

Please ensure you are attempting to access the Sophos PureMessage Quarantine Digest web site using the link supplied in your latest Quarantine Digest email.

If you have received this message even after using the supplied link then it may be due to your session expiring after a period of inactivity - please try clicking on the link within the Quarantine Digest email again.

If you haven't received a quarantine digest email recently it may be because you do not have any items in the quarantine.

Please contact your system administrator if you believe you are receiving this message in error.

Can you help me please