Yep! This bug happened because the game was trying to call a piece of dialog when there wasn't any. The good news is you aren't missing out on anything. The problem has been fixed as of version 1.01.
It's a different problem, but that bug is also fixed in version 1.01. The game checks a flag to see if you've already been to the lewd scene once, but... the game was never actually turning that flag on when it was supposed to be. Woops.