Can You upload fixed files my friend?The link to the changes I made is pending review by a moderator, but just in case it helps, I had to modify the following files:
game\label\quest_label.rpy
game\label\black_label.rpy
game\label\f_1.rpy
It's an issue with variables inside the ifs and calls to the labels. If you filter by dialogues, you'll notice, as I also had issues with the Ruby character later on.