Error's during Night 6 Boss fight

Question

Hello, I'm trying to complete the bad ending with a character I mod i'm creating, and before publishing it, I wanted to test that it at least worked decently and didn't have any errors. However, something is happening during the boss fight of night 6, I'm getting these errors. I checked if they were due to a problem with the spoiler dialogue text files, but I don't know what it could be. If anyone has experienced something similar, please don't hesitate to reply.

CreatorTheMod · Answer

The first one says that the game is trying to show a sprite but that it doesn't exist so make sure the sprites are correctly and that they are correctly named.Second image i'm not sure...