Submit Button on Contact Me page no longer there

I’m helping a friend with her blog. Recently, the “Submit” button on her “Contact Me” page disappeared. It may have happened with an upgrade to the latest version, I don’t know. This page has been stagnate and working fine for months/years so I’m not sure what the issue could be.

I’ve tried creating a new page and using the “Create Contact Form” option (built in to WP) and I get the same results.

Here’s the code that’s in the page (created by the form).

[contact-form][contact-field label='Name' type='name' required='1'/][contact-field label='Email' type='email' required='1'/][contact-field label='Message' type='textarea' required='1'/][/contact-form]`

Here’s the URL of the page:
https://thefarmbarbie.com/contact-thefarmbarbie/

Thanks in advance for any help you can provide.

Andrew