I've moved this thread to Script Support. Please be sure to post your threads in the correct forum next time. Thank you.
Thanks !-EvEx.rb:374:in `use_item': undefined method `last_used_item=' for #<Game_Temp:0xa33e4b0 @common_event_id=0, @fade_type=0>, NoMethodError
from Scene_ItemBase:134:in `use_item'
from Scene_Item:72:in `use_item'
from Scene_ItemBase:65:in `on_actor_ok'
from Window_Selectable:212:in `call'
from Window_Selectable:212:in `call_handler'
from Window_Selectable:331:in `call_ok_handler'
from Window_MenuActor:21:in `process_ok'
from Window_Selectable:297:in `process_handling'
from Window_Selectable:276:in `update'
from Scene_Basein `block in update_all_windows'
from Scene_Base:93:in `each'
from Scene_Base:93:in `update_all_windows'
from Scene_Base:49:in `update_basic'
from Scene_Base:41:in `update'
from Scene_Base:14:in `main'
from SceneManager:23:in `run'
from -EvEx.rb:4636:in `run'
from backtracer:10:in `block in <main>'