I can't place fruit or vegetables in my fridge on one lot only

Do you have any mods or CC (custom content)? Try taking that out.
See this for more information: [PLEASE READ] Usage of Mods and Custom Content

Can you drag cooked food to the fridge?

Did you try replacing the fridge?

@heberer14 have to tried to place the fruit  and vegetables in the world first and the open the fridge and then out the in fridge?

If you didn't please try that once.

1) Open the inventory

2) Click on the  fruit  and vegetables

3) Select "Place in Work"

4) Click on Fridge and select "open"

5) Hold the fruit and drat it to the fridge Inventory 

I wish you best of luck.

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