Good day!
Thank you kindly for reporting this matter. I found the culprit to be a Boolean value that should have been set to "false" and was, instead, "true." I also decided to move the section about the "Academy rules" further into the same section, and to outright hide it if the player chooses animal semen earlier in the game (I tried re-writing it, but wasn't happy with the outcome). The new version is uploaded and playable now.
As for the game becoming unplayable, would you be good enough to elaborate? I tested a few different methods of play, but the "new game" and "continue" options remained available to me at the appropriate times. Any details you could provide would be helpful in squashing this bug.
Have a wonderful day!
-Lars