Game analysis - Poofs Killergarten Divided Fate | Beta

Interested in testing the game, however an early error spoils the game.
Crash occurs on leaving the dormitory and after seeing the first intro.
Same error below pops up when trying to save. Feels related to "opacity", which is a picture property, either for a character (event), or a picture to be displayed.
nil:NilClass seems to be related to an object named "nil" and its property named "NilClass".

"Script "saves" line 310: NoMethodError occured.
undefined method for "opacity= " for nil:NilClass"

Points so far:
1. I like the animated intro, though a skip option is recommended, since early crashes make you need to go through it again and again.
2. I like the "discoball" effect (the lighting effects that go on the screen).
3. significantly improved graphics quality so far.
4. you can try to add automatic save hinting: show the player the option to save the game. However, this works as a pop up window, and since many people have a tendency to press Escape (which closes that Save Prompt box by the way, am telling you from experience), I'd recommend telling the player before that a save hint comes: either through image or text box (i'd prefer 2nd, because it's player input, so the player can't do anything about).