Hello Aena,
You posted some blocks, but you haven't shown the part where the error occurs (the part where you select the list item).
To download a clear image of your blocks, right-click them and select Download Blocks as Image. Or, right-click on an empty space in the Blocks editor and select Download Blocks as Image to do so for an entire screen.
1 Like
In the place where you load your list of tasks from TinyDB, check if the returned value is a list with an if then block using the Is A List block.
If it falls the test, use an empty list.
I suspect you have leftover non-list values in TinyDB.
PS. @gordonlu310 is right, you showed us the wrong screen.
Show us all of them.
Also, switch screens properly. Close screens as often as you open them.
1 Like