It looks like you have the text box and back button painted over in gray. Not even going to guess why that might be. Good luck in your search.
The buttons are ok. I can click them. The first one shows blue because the cursor is hovered over it. Both buttons work.
But I figured it out. When it says "I should tell Miss Chang..." you have to click on the screen / or press space, and you get a new entry into the log. Instead, I was just pressing the shut down button of the screen.
