Compilation/ possible scripting error (screen capture included)

I’m new to Unity and Unity Script.
As you can see in the image below, I get an error on a line that does not exist, which I looked up and found: Weird error on line that doesn’t even exist and the answer was: “The error it’s giving you is related to the compiled version of the code, not your version.” - Farfarer Leeds,UK.

I’m not sure how to disconnect the connection between the script and the game other than deleting the Script component from the Inspector…

My questions are:

  1. Is there a scripting error in this script?
  2. How does compilation work?

(I know the order of compilation, but In my “Assets” folder I have “Scripts”, “iTween”, “Plugins”, “Models”. Do I need a “Standard Assets” folder for this particular script to work since it contains iTween?)

Any hints or comments would be greatly appreciated.

The script in your screenshot is the file “playAnimation_Togggle.js”, but the error is referring to the script “playAnimation.js”