I'm reading the tutorial on how to create a contact form: https://mdbootstrap.com/components/bootstrap-contact-form/ But I keep getting a TypeError whenever I click on the submit button. I didn't change anything but the e-mail recipient, so it's basically the same. I have no idea how to fix it. This is the website where it's supposed to be working on: www.hvacofp.com Scroll all the way down and you will see the contact form.

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