[Question] Bugs after erasing some code.

So I tried to add https://www.pokecommunity.com/showthread.php?t=414249 this into my game, but I saw that it didn't work with my version (16.2) so I've erased it. And now...I have this error each time I try to open the game:

[TypeError, "incompatible marshal file format (can't be read)\n\tformat version 4.8 required; 0.0 given", ["Section050:1743:in `oldload'", "Section050:1743:in `load'", "Section178:2667:in `load_data'", "Section178:2667:in `pbCompileAnimations'", "Section178:4135:in `pbCompileAllData'", "Section178:4221"]]


Excepción: NoMethodError

Mensaje: undefined method `name' for 0:Fixnum

Compiler:2695:in `pbCompileAnimations'

Compiler:2693:in `each'

Compiler:2693:in `pbCompileAnimations'

Compiler:4135:in `pbCompileAllData'

Compiler:4221


What is this? How can I fix this? I tried to change to a new project but it justs bugs

try starting a new game. I'm unsure how adding a cosmetic script could break a save but it has.