Help plz. I'm doing 'Paint Dots' Tutorial

I followed the tutorial and double-checked all the blocks.
I cannot find out which block is making the error mentioned in the picture.
Please, help me.


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Your color list might need to be a color table (list of lists).

Add more colors.

Could you explain in detail?
Thanks in advance.

The tutorial says "When ListPicker1 is opened, the user will see a list of all the colors that have been created on the Brush_Picker screen. ListPicker1.AfterPicking gets the sublist for the chosen color from the main colorList, and then pulls out the color value and dot size so any dots drawn will use that color and size."

Thanks for replying.
I have made the color table, but the error message is still recurring.