Hi Chimera! Thank you for playing Emerald Wasp, I'm glad yo hear you're liking it so far >\\\<
About the black screen: are you playing it on Mac, right? In that case, are you using the Mac version or the PC version on Wine?
(I'm searching for a solution for the error)
I'm sorry for the inconvenience ;__;
Did a bit of research, it's apparently due to a save file malfunctioning. What happens if you load a previous one and go through the scene?
If it doesn't work please tell me which choices you did \ how many medals you have, so I can make a savefile past that scene and send it to you... I'm sorry, it's the first time ever that this particular error occurs ;w;