Cyber Castle Challenge - Technical Glitches

Hello,

I want to use the Cyber Castle Challenge for my class as it meets V9 of the Australian Curriculum.  Unfortunately, there seems to be a few glitches in the program, especially with the NPC the "Librarian".  The Librarian randomly does not work as well as other things.  This world was last updated in 2022. Not sure what is going on, or if the program needs updating?