After the upgrade to 5.0.11, everything seems to be up and running. All of the logging is working, all of the entries are going to the database, etc. However, the admin console does not reflect this. The admin console states:

Server status data is not available. To see the server status, logger service must be installed.

Additionally, all of the server statistics with respect to message count, message volume, anti-spam/antivirus are no longer working. The graphs only show the data up to the upgrade and are blank thereafter. I am able to see the session and mailbox quota information.

Any suggestions as to where I should start looking on this?