Chat With RTX

When openeing Chat With RTX, it gives me this error.

What should I do to fix this?

For ChatRTX support, please see this post:

ChatRTX

I apologize, but I cannot access the contents of the book “Book - Ben Shneiderman-Designing the User Interface-4th Edition.pdf” as I do not have the necessary permissions or access to the file. Additionally, I do not have any knowledge of the contents of the book.
Reference files:

how to troubleshoot??