Ah ok... thank you!...
After doing several manimulations I realized that I didn't use a good method. The new one is better. In fact, I think the basic problem now comes from a conflict between a combined condition and an item that is present in my inventory but doesn't want to disappear from the scene. The combined condition seems to have priority...
(The combined condition is the box "negate" on closed cupboard and without setting on open cupboard... But the issue is that when I want to take the item / put it in the inventory... (with the usual manner "condition false" / "add to inventory") The object on the scene doesn't want to disappear !)
Do I have to solve this step with the values system ?
Please tell me if I've made myself clearer ??