Hi There,
I have enabled your WP_DEBUG mode (https://codex.wordpress.org/WP_DEBUG) on the site and now you should see the errors when visiting your site.
Fatal error: Uncaught Error: Call to undefined function is_woocommerce() in /home/u913079509/public_html/wp-content/themes/x-child/framework/legacy/cranium/headers/views/ethos/wp-header.php:21 Stack trace: #0 /home/u913079509/public_html/wp-content/themes/x/framework/functions/frontend/view-routing.php(182): include() #1 /home/u913079509/public_html/wp-content/themes/x/framework/functions/frontend/view-routing.php(55): X_View_Router::render('/home/u91307950...', Array, true) #2 /home/u913079509/public_html/wp-content/themes/x/framework/legacy/cranium/headers/views/header/base.php(17): x_get_view('ethos', 'wp', 'header') #3 /home/u913079509/public_html/wp-content/themes/x/framework/functions/frontend/view-routing.php(182): include('/home/u91307950...') #4 /home/u913079509/public_html/wp-content/themes/x/framework/functions/frontend/view-routing.php(55): X_View_Router::render('/home/u91307950...', Array, true) #5 /home/u913079509/public_html/wp-content/themes/x/header.php(11): x_get_view('header', 'base') #6 /home/u91307950 in /home/u913079509/public_html/wp-content/themes/x-child/framework/legacy/cranium/headers/views/ethos/wp-header.php on line 21
Basically your errors are related to your child theme customizations. You will need to go through your customizations and fix those errors.
Thanks!