Issue with drag and drop code snippet.

Hey all! I am very new to adobe animate and am using it for a class that I have. I am trying to create a very basic puzzle, but when I use the "Drag and Drop" code snippet the project stops working when I test it. I have checked to make sure my puzzle pieces all have their own Instance names, but that particular code line just results in a syntax error when testing it in the browser. I am not editing or doing anything else to the code line, just adding it to a piece (PP1 in this case) and I get a white screen when it loads in the browser. Is the code itself bad or am I doing something wrong to cause this?