[Question] what in the name of god does this mean and how do i fix it

so i was trying to play test my game and this error popped up saying
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Pokemon Ghost
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[Pokémon Essentials version 17.2]

Exception: NoMethodError

Message: private method `gsub' called for nil:NilClass

Compiler:3168:in `safequote'

Compiler:4180:in `pbConvertToTrainerEvent'

Compiler:3403:in `pbCompileTrainerEvents'

Compiler:3398:in `each'

Compiler:3398:in `pbCompileTrainerEvents'

Compiler:3393:in `each'

Compiler:3393:in `pbCompileTrainerEvents'

Compiler:4424:in `pbCompileAllData'

Compiler:4515



This exception was logged in

C:\Users\benlogan\Saved Games\Pokemon Ghost\errorlog.txt.

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OK
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i looked through this forum and i tried copying the pbs from my backup and the error kept popping up so yeah....... oof

Probably one of your trainer events comments (defined in the RMXP event scripts thing) is formatted wrong.

That specific error comes from having a "nil" string. So I figure it's failing to find what it's looking for.

ah that makes sense thanks!! i think i've figured it out before i just couldn't read so yeah thanks