Fatal error: Uncaught Error: Call to undefined function storefront_html_tag_schema() in /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-content/themes/wp_theme_inga3d_store/header.php:10
Stack trace:
#0 /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-includes/template.php(785): require_once()
#1 /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-includes/template.php(720): load_template('/home/customer/...', true, Array)
#2 /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#3 /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-content/themes/storefront/page.php(13): get_header()
#4 /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-includes/template-loader.php(106): include('/home/customer/...')
#5 /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-blog-header.php(19): require_once('/home/customer/...')
#6 /home/customer/www/inga3d-store.virtua in /home/customer/www/inga3d-store.virtual-campus.eu/public_html/wp-content/themes/wp_theme_inga3d_store/header.php on line 10