If the crashes happen after a somewhat consistent amount of time, it may be your computer running out of memory. This could be easily checked by running a monitoring program (or just task manager) while playing the game.
RPG Maker is not what I would call memory-efficient and a plugin could be leaking memory.
I have seen probably only 10% of the game so I can’t speak personally on any other bugs, but after fixing all the filenames in img/layers/ I’ve had no other gameplay-affecting issues with what I’ve played.