I checked your site and when I manually removed the preloader on the search page, I found the error in your own child theme.
This error is not generated by the Kenta theme, but by a child theme you created yourself, so you’ll need to fix it yourself.
Please check (I have replaced the domain name of your website with yourdomain.com in the output):
Fatal error: Uncaught Error: Call to a member function get_sku() on null in /home/customer/www/yourdomain.com/public_html/wp-content/themes/kenta-child/inc/template-tags.php:466 Stack trace: #0 /home/customer/www/yourdomain.com/public_html/wp-content/themes/kenta-child/template-parts/content-entry.php(35): kenta_post_structure(‘entry’, Array, Array, Array) #1 /home/customer/www/yourdomain.com/public_html/wp-includes/template.php(792): require(‘/home/customer/…’) #2 /home/customer/www/yourdomain.com/public_html/wp-includes/template.php(725): load_template(‘/home/customer/…’, false, Array) #3 /home/customer/www/yourdomain.com/public_html/wp-includes/general-template.php(206): locate_template(Array, true, false, Array) #4 /home/customer/www/yourdomain.com/public_html/wp-content/themes/kenta-child/inc/template-tags.php(189): get_template_part(‘template-parts/…’, ‘entry’) #5 /home/customer/www/yourdomain.com/public_html/wp-content/themes/kenta-child/template-parts/special-loop.php(21): kenta_render_posts_list() #6 /home/customer/www/in?/home/customer/www/yourdomain.com/public_html/wp-content/themes/kenta-child/inc/template-tags.php?on line?466