Select 'Modules' to see the list of Java applications.
Click on 'Chapter 4'. Then click on '4.2 Charges in Adjacent Dialectrics'. At this point, you will see this screen:
Press "Allow" button. NOTE: Do NOT press highlighted "Don't Allow" button. Next you will see this:
Click the box next to "Always trust content from this publisher". The screen should look like this:
Then press the "Yes" button. You should see this next:
Click the box next to "Always trust content from this publisher". The screen should look like this:
Press the "Run" button, and the module will execute correctly: