Sorry to see you are having problems. Please feel free to contact me directly at jonm@geometrygym.com if you need help or have questions.
Now, you shouldn't be seeing that exception (I need to add a check into my code), but I have just tested that component and I believe the error is due to an absence of a license file.
Please run in Rhino the command sdrZZLicenseRequest . If it doesn't create an email to send to me, text data for a license is copied to Windows clipboard. Paste that into an email to the address above and I will send instructions. If you do have a license, test on the attached files, and let me know and I will help diagnose the problem.