After Radar license renewal, I'm able to access the Radar portal. However, one or more of my scan nodes show up in an expired state and the scan node has a yellow exclamation mark in the list of scan nodes (Settings >> Scan nodes). Also I'm unable to launch any scans using this particular scan node.
Contact support for further assistance as there might be an issue with your Radar license(s). You can submit a support request from here.
Article no: 000010789