Fatal error: Uncaught Error: Call to undefined function storefront_html_tag_schema() in /var/www/vhosts/berks.net/httpdocs/wp-content/themes/storefront-child/header.php:17
Stack trace:
#0 /var/www/vhosts/berks.net/httpdocs/wp-includes/template.php(684): require_once()
#1 /var/www/vhosts/berks.net/httpdocs/wp-includes/template.php(643): load_template()
#2 /var/www/vhosts/berks.net/httpdocs/wp-includes/general-template.php(45): locate_template()
#3 /var/www/vhosts/berks.net/httpdocs/wp-content/themes/storefront-child/page.php(13): get_header()
#4 /var/www/vhosts/berks.net/httpdocs/wp-includes/template-loader.php(74): include('/var/www/vhosts...')
#5 /var/www/vhosts/berks.net/httpdocs/wp-blog-header.php(19): require_once('/var/www/vhosts...')
#6 /var/www/vhosts/berks.net/httpdocs/index.php(17): require('/var/www/vhosts...')
#7 {main}
thrown in /var/www/vhosts/berks.net/httpdocs/wp-content/themes/storefront-child/header.php on line 17