Saving Inventory

I was making an inventory in my game using a tutorial from gdevelop (“Building An Inventory System”) and i want to save my progress/inventory.
Ive been using Save and load Text or Value. But instead it doesnt show up or the code doesnt save. Can you help me?

but i tried your instuctions but it doesnt work (unless ive done it work)

So you did it wrong
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Please show your events, otherwise there’s no way for us to determine what the problem is