Okay so i have JoiPlay 1.20.540, and i did install the 1.20.70 RPGMaker Plugin, i did extract the patch in the game folder, and I didn't put the patch in the JoiPlay folder. So basically the crash still happens with the same error, literally only when the slime girl attacks me, because when i attack and kill the slime girl, the game don't crash, it's only when she attacks (again i made a new save from start of game), maybe the Joiplay version is not the correct one? (it's the latest normally) Or it's maybe another problem?
Oh yeah i downloaded the plugin and joiplay from the JoiPlay patreon, thank you all for trying to help
Edit : Okay i tried in like other saves and it's the same whenever a monster attack me Joiplay just crashes, like the animation and all is there still and works perfectly fine but yeah when i get attacked i just crash ;-;