What does this issue mean and how can i fix this?

You are trying to get value from Tinydb with variable value. If your list is products, then you don't have to call Tinydb, or if your values are in a tinydb tag, use text instead of variable value.

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ohh, do i delete all of this?

Don't delete, just replace get global Products with "Products"

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i tried changing it into this but sadly im still facing the same issue

Post your blocks in high quality. See also here:

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grafik

Replace "empty string" with "create empty list" ...

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then replace "get global Products" with "Products" again

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All of the get global products?

I tried that and the error disappeared but now all of the buttons wont work and this error shows up
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yes

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Using a separate screen for each inventory item is a recipe for disaster.

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