McAfee ePO 3.5.5 AV Coverage Reporting Issues

We use McAfee Total Enterprise for our organization and have used it for the past 8 years without much problem. It truly has been a good product. Just recently we found out that we are unable to run AV Coverage DAT/Definition Deployment Summary, DAT Engine and Engine Deployment Summary reports. When running report tasks nothing happens and we are unable to get an event log report within ePO that can point us to what the problem is. Can someone who has experience with McAfee ePO 3.X products provide expert help?