[Scripting Question] Error with Trainer Battles

[imnonoob99]

Every time I try to battle my first trainer (first that I've made, so I'm not familiar with these errors) I get this error. As soon as the battle should start the error appears, no transition.

I can't find anything on it either

Spoiler:

Edit: This happens for all trainers (I made 2 more since I got this error to see if it was just the one battle, but it's multiple.)

 

[mej71]

That method exists in Essentials, you've somehow deleted it

 

[imnonoob99]

That method exists in Essentials, you've somehow deleted it

I've tried downloading a blank copy of 17.1, and without changing the scripts at all I still get the same error. I copied everything else over there (The graphics, audio, the maps and the PBS files). So I don't know what the problem is.

I've not made many changes except a few maps. Should I just start from a blank slate with only the graphics and audio files?

Edit: I should say I don't know if this is a problem because I moved the files over incorrectly or something like that because I had no trainers in v16. I had them written out in the Trainers PBS file, but none set up as events yet. When I upgraded to v17.1 I started putting the trainers on the maps and that's when I got the error. But after I got this error I tried downloading another copy of v17.1 and changed my files over to that but I still got the error.

 

[imnonoob99]

So I finally got it to work, all I did was just get a clean copy of 17.1. Copied everything over 1 by 1 to figure out what was causing the problem.

I didn't figure out what exactly was causing the problem, but by not copying the files over (except the graphics, audio, and maps) and instead copying certain content within the PBS files I was able to get everything to work.