My check your code button does not work

“Try opening the console, it will give you more information about analyzing your code.”

If you open the console it was pointing to that line. That can give you a clue of where to look.

You’re learning now, but when you are writing code on your own, you will only have the console (and other tools) to analyze your code. Good to get to know how to use the console, an invaluable resource that you should constantly have open.