PHP Fatal Error

I inherited a website designed using Travelify. Using PHP 7.4 and current Wordpress version.

I am getting a fatal PHP error:
PHP Fatal error: Uncaught Error: Call to undefined function types_render_field() in /home/rockportusa/public_html/wp-content/themes/travelify-child/functions.php:1805

This is causing the pages to not render properly. I have had to put website in Maintenance as it is now unusable on several pages

Hi there

Can you please provide admin details in a DM? I will check it