Responsive menu broken. Please help!

I am creating a website using the Firmasite template. I must have broke something in the navigation bar because when the page is narrow, the icon for the menu (for mobile) isn’t working.

I have turned off maintenance mode so you guys can see it and so I can possibly get feedback. Here is the URL: https://www.josephperullo.com

I am a WordPress newbie, so be gentle. Any help is greatly appreciated. Thanks all!