Ivory Search not working

I hope you are well today and thank you for your question.

I tested it on your website and saw this is happening because of the admin-ajax.php 403 forbidden error that occurred on your website that displays in the browser console.

You can fix this error by contacting your web host and as described on the below pages.

https://www.wpbeginner.com/wp-tutorials/how-to-fix-the-403-forbidden-error-in-wordpress/
https://kinsta.com/blog/403-forbidden-error/

Best regards,

I was using a plugin W3 TOTAL CACHE, by deactivating this plugin the problem got solved.

Awesome great to see you got that solved.

Please advise if you have more questions.

Have a fantastic day!