The license for your commercial product has expired six months ago on a particular server. I'm assuming this means it is GPL now. Where I used to be able to package updated for the last few months I now get the following error for all packages:
http://software.virtualmin.com/rhel/5/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 401: Authorization Required Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: virtualmin. Please verify its path and try again
Are package updates supported once your commercial license expires?