SINtax EroRR
I found an odd bug during Lopunny's event in the market. After beating the Typhlosion doll, I'd take a step and the game would crash with this message:
It seems that for some reason the game thinks there's an egg in the party but since it can't find it, it instantiates a null object?
I fiddled around with debug mode and it finally went away although I can't really tell what fixed it because I did many things at the same time.
I think filling my party with pokemon is what fixed it (I was running 5 pokemon at that time), but I can't tell for sure.