[Other✓] Emerald black screen when loading map

So far the only thing I've done is revamp about 5 of the game's (Emerald) maps. The problem is that I'm using Advance Map, and I know that has some issues with corruption sometimes.
When I load the game it works fine up until the point where the intro ends and the player shrinks into the overworld, then everything is black.

Help would be appreciated. Thanks!