: Uncaught Error: Call to undefined function is_woocommerce() in /var/www/vhosts/santana-dance.de/httpdocs/wp-content/themes/Harmony/functions.php:1054
Stack trace:
#0 /var/www/vhosts/santana-dance.de/httpdocs/wp-content/themes/Harmony/functions.php(1133): et_is_shop_page_fullwidth()
#1 /var/www/vhosts/santana-dance.de/httpdocs/wp-includes/class-wp-hook.php(300): et_add_woocommerce_classes(Array)
#2 /var/www/vhosts/santana-dance.de/httpdocs/wp-includes/plugin.php(203): WP_Hook->apply_filters(Array, Array)
#3 /var/www/vhosts/santana-dance.de/httpdocs/wp-includes/post-template.php(770): apply_filters('body_class', Array, Array)
#4 /var/www/vhosts/santana-dance.de/httpdocs/wp-includes/post-template.php(557): get_body_class(Array)
#5 /var/www/vhosts/santana-dance.de/httpdocs/wp-content/themes/Harmony/header.php(35): body_class()
#6 /var/www/vhosts/santana-dance.de/httpdocs/wp-includes/template.php(684): require_once('/var/www/vhosts...')
#7 /var/www/vhosts/santana-dance.de/httpdocs/wp-includes/template.php(643): lo in /var/www/vhosts/santana-dance.de/httpdocs/wp-content/themes/Harmony/functions.php on line 1054