Dear, I need help with networt atlas.
See error in image.
From the error there seems to be a missing node id of "947". Do this to look for the missing node open up a node details view of a node in your Orion environment. Look at the end of the URL there is a "NXXXX" the "XXX" is the node ID. Simply put the 947 in place of the "XXX" and see what you get.
Example: http://yourservername/Orion/NetPerfMon/NodeDetails.aspx?NetObject=N:1133 <- replace the "N1133" here with the "N:947" in your environment.
If you know how to run reports you can also find it using a simple report for all your inventory just make sure you have "Node ID" added to your "Select Fields" tab.