Problem with application Property setter was expecting a com.google appinventor.components.runtime.Button component but got a IntNum instead

MIT App Inventor Help
1

hello, i tried to creat a tictactoe game but i got this message when i tried to open the app. i understand the error but idk how to fix it.
the project is being ulpoad here so if someone can pls help me

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TicTacToe.aia (20.7 KB)

2

Here for starters

image
image796×534 55.5 KB

You need to provide a button component in the "of component" socket