I'm starting to get into the battle system now, so I'm poking at all of your scripts, heh. Here are some minor errors here and there that I've come across :
NoMethodError occured while running script.
undefined method 'skin='.
Script 'PAC Battle Addons 1.6' line 2313: NameError occurred.
undefined local variable or method 'collase_note'.
Death by misspelled method! Just missing the 'p', there.
NoMethodError occurred while running script.
undefined method 'change_update_range'.
This occurred right after entering a number for the update range NPC.
Also, the game crashed after winning the fight with the vampire and starting to return to the previous screen, no error message displayed.