Thanks for letting me know! We just looked into it and there seems to be a bug that makes the lights, that are supposed to guide you in the darkness, not appear sometimes.
You might be able to hit continue if you just closed the game. Otherwise, you can only get that bonus once, so it won't show up on new game again. If you can get back there, try walking straight up until you see something. Sorry for the trouble.
We'll add that patch to a more major update we're working on. When we update, the saves get cleared unfortunately. So we want to make this update worth playing again with more endings, fixes to the enemies, more gameplay, and more secrets 😼
Thanks again and sorry the bonus didn't work for you 😅