Issue: NodeXL Crashes and displays “Object reference not set to an instance of an object”
Restart NodeXL Pro. It will ask for the location of the NodeXL Pro License Key. Once that is provided, it should work properly.
There are several other possible solutions to this problem. If these steps do not resolve the issue, please install TeamViewer and send a message with the Team Viewer ID and PW to firstname.lastname@example.org and we will fix the problem as soon as possible.