Fatal error: Uncaught Error: Call to undefined function is_checkout() in /var/www/vhosts/bonfireworks.nl/httpdocs/wp-content/plugins/hide-price-until-login/hide-price.php:98 Stack trace: #0 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/class-wp-hook.php(286): ced_hpul_enqueue('') #1 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #2 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #3 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/script-loader.php(2463): do_action('wp_enqueue_scri...') #4 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/class-wp-hook.php(286): wp_enqueue_scripts('') #5 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #6 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #7 /var/www/vhosts/bonfireworks.nl/httpdocs/wp-includes/general-template.php(2668): do_action('wp_head' in /var/www/vhosts/bonfireworks.nl/httpdocs/wp-content/plugins/hide-price-until-login/hide-price.php on line 98