Build a Telephone Number Validator - Can't "Run the Tests"

I’ve been working on the Build a Telephone Number Validator certification project, and about halfway through the “Run the Tests” button stopped working. I’ve tried saving and reloading, clearing my browser cache, and many other things but nothing has worked. Does anyone have a fix to this issue?

Usually that means that there is a syntax error with your code, but I can only guess until you paste your code in here so we can check it for ourselves. But be sure to open the console pane to see if there are any errors showing.

There was a syntax related issue, thanks.