Property getter was expecting a component but got a String instead

I am now creating a mole mash game but this error message pops out every time before the Score Report is displayed.
Here is my project:
molemash_v2_2B_17.aia (5.0 MB)
Here is the photo of the blocks:

Any help would be appreciated! Thank you so much! :smiley:

Ah finally resolved.

Can you post here how you solved the problem? It is important for other users to learn from this. Well done!