My Infrastructure Not Displaying

by Mar 10, 2012

My Infrastructure is no longer displaying. I created a new group and added a new system to it. When the screen refreshed, the new system didn't displayed. I manually refreshed the screen and tried expanding the new group but nothing ever appeared. I then removed the server from the group and when the page refreshed, My Infrasctructure was gone. There is an error on the page which I have attached.
I have tried restarting all the uptime services as well as creating a new group and adding another system but, nothing seems to have worked.

If anyone has any ideas, it would be much appreciated!