Thank you for your help for releasing the licenses, everything is working fine now.
I guess the problem arose when I switched to a new computer. I did uninstall SketchUp from the old PC, but before that I didn't remove the licenses for SCFLicence:Global status... in the SketchUp environment and then I had no way to remove it. Apparently the correct procedure is to remove the licenses from SCFLicence:Global status.... before uninstalling SketchUp. Or you could permanently give the option to remove the license from the web environment as well at https://sketchucation.com/webshop/my-licences.php.
Special thanks to Fredo6 for your work for SketchUp. I've worked extensively with the program for over 15 years and your plugins have saved me many a working night.
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