I haven't implemented local storage yet in my game, but even I see that you are doing it all wrong. There is a dozen of mistakes in your file...
You shouldn't read or write to storage on every tick! This is a time consuming operation and you need to follow the rules.
You get item once on start of layout for example, then you wait for it to be retrieved (LocalStorage->On item get). If it's missing, then you create this item.
When your money amount is changed, you set item. You should do it only once, not on every tick! And then you may want to wait and check that it was saved successfully (LocalStorage->On item set).
You should definitely study the tutorials.