Download the latest version of the game again and reinstall it; that should fix the error.
OMG You're a genius! Thank you so much for fixing it, I LOVE YOU 馃槏馃槏馃槏馃槏馃槏馃槏馃槏
After the mention of the imperfect amulet, this error appears that prevents you from progressing in the plot for anything in the world...
You're a genius! Thank you so much for fixing it, I LOVE YOU 馃槏馃槏馃槏馃槏馃槏馃槏馃槏