Game_Interpreter:1411:in `eval' : undefined method `keys' for nil:NilClass (NoMethodError)
from Composite Graphics:534:in `block in make_save_header'
from Composite Graphics:532:in `each'
from Composite Graphics:532:in `make_save_header'
from WEAPON Refine_Script:348:in `block in save_game_without_rescue'
from WEAPON Refine_Script:346:in `open'
from WEAPON Refine_Script:346:in `save_game_without_rescue'
from DT's Autosave:800:in `call'
from (eval):1:in `command_355'
from Game_Interpreter:1411:in `eval'
from Game_Interpreter:1411:in `command_355'
from Game_Interpreter:197:in `execute_command'
from Game_Interpreter:103:in `run'
from Game_Interpreter:60:in `block in create_fiber'