So, I've been trying to make a Final Fantasy 1 styled Magic system, where you only have a limited number of spells per "day", and this https://victorenginescripts.wordpress.com/rpg-maker-mv/mp-levels/ has been the closest I could find for my goal. However, the growth functions were not working, so I decided that instead of it being base on level ups, why not find a special currency around the world that can solely be spent to buy items to increase those levels. The moment I used the item in game, it crashed and game me: Type Error: Undefined is not a function. I get this error even if it and it's dependency mod is installed. Judging from my limited skill in JS, it looks like it's conflicting with a base script in rpg_scenes. I don't know what else to really say. It did this on my main game, and also on my testing game.