submit button doesn't show (joomla 4)

Hello.
The button to submit the form is not displayed and does not work.
I deleted and recreated this button but it still doesn't work
iranianinfo.ca/canada/immigration-assessment-form

Hello naderfarid,

I looked at your form using the web browser developer tools.
You have JavaScript errors on your site.

The grayed out submit button is a known behavior and is by design.
You can find more in the documentation.
Submit button is disabled and not working:
docs.joomla-4.visforms.vi-solutions.de/e...-button-not-working/

Citation:
If the Submit button below the form is grayed out and disabled, then you most likely have a JavaScript error on your website.
As a form component, Visforms depends on the JavaScript on the page to function properly.
Since it is so important that the JavaScript works, we have decided to initially display the submit button in the form in the deactivated state.
We then dynamically switch this deactivated status to activated with the help of JavaScript.

Find and fix the JavaScript error on the page:
docs.joomla-4.visforms.vi-solutions.de/e...pt-error-on-the-page

Kind regards, Ingmar