Please run the Window > Libfredo Settings > Fredo6 Plugins Information for Sketchucation Support menu command in SketchUp and copy/paste the output into your reply. If your device name uses non-alphanumeric characters please change your device name to only use alphanumeric characters. Example Mésák as a device name would cause. Follow the prompt in the alert and delete your signature file at C:\Users\SomeName\AppData\Local\SCF Licenses