Dont worry, if you are editing for personal use, thats fine.
But almost any .rpa extractor can compile the files back (even free online ones).
Also, about .rpy files, when you run on renpy the 1st time, the engine create the .rpyc. So basicaly, if you can edit it the game anyway, you can easily pack it back to upload here.
There is a scene with the principal at night on her office that crash the game. I posted the fixed .rpa some posts later. There is some other crashes (like when you try to acess Viollete galery) that probably are other simple script errors, and then can be easy to fix, if you want to go deep on that.
Sorry, i can remember the dialogues where the terms "mon" or "sister" pass. I remember seeing at the start of the game, but i played almost every scene skiping dialogue, so i cant confirm where they are.