[Question] Error with tileset???

Hey everyone, I'm making a fan game using Essentials 19.1 and made a map that's less than 50x50 tiles. If I walk west to a certain vertical column of tiles, the game crashes leaving this message. Is it an issue with the tileset?

[Pokémon Essentials version 19.1]
[Generation 8 Project v1.1.0]
[EBDX v1.2.3]

Exception: NoMethodError
Message: undefined method `*' for nil:NilClass

Backtrace:
075:CustomTilemap:510:in `addTile'
075:CustomTilemap:943:in `block in refresh'
075:CustomTilemap:940:in `each'
075:CustomTilemap:940:in `refresh'
075:CustomTilemap:1009:in `update'
074:TilemapLoader:38:in `update'
065:Spriteset_Map:121:in `update'
066:Sprite_AnimationSprite:81:in `update'
032:Scene_Map:144:in `block in updateSpritesets'
032:Scene_Map:138:in `each'

Try with this, maybe it solves the problem.

https://reliccastle.com/resources/468/