[Error] undefined method `passages' for nil:NilClass

[Byliyth]

I was starting up Essentials again, and all of a sudden I got this error message.

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Pokemon Essentials
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[Pokémon Essentials version 17.2]

Exception: NoMethodError

Message: undefined method `passages' for nil:NilClass

Compiler:3284:in `isCounterTile?'

Compiler:3492:in `isLikelyCounter?'

Compiler:3535:in `pbCheckCounters'

Compiler:3533:in `each'

Compiler:3533:in `pbCheckCounters'

Compiler:3521:in `each'

Compiler:3521:in `pbCheckCounters'

Compiler:3420:in `pbCompileTrainerEvents'

Compiler:3393:in `each'

Compiler:3393:in `pbCompileTrainerEvents'



This exception was logged in 

C:\Users\***\Saved Games\Pokemon Essentials\errorlog.txt.

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OK   
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Only scripts I installed are LukaUtilities, Elite Battle System, and the Modular Menu, all from the EPI. Any help would be appreciated.

UPDATE: I replaces the scripts file with a fresh Essentials one and it still doesn't work?

 

[Maruno]

You've drawn a map and then changed its tileset to a shorter one. The problem here is caused by the map using one or more tiles that are now off the end of the shorter tileset. Have fun trying to find it!

 

[mgriffin]

If you go to where that error is occurring, you might be able to add a print statement to help you work out which tile (number, I guess?) is missing, and causing the error.