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Fatal error: Uncaught Error: Call to undefined function Webikon\Woocommerce_Plugin\WC_Nastavenia_SKCZ\is_checkout() in /www/doc/www.ip-kamery.net/www/wp-content/plugins/wc-nastavenia-skcz/class-wc-nastavenia-skcz.php:148 Stack trace: #0 /www/doc/www.ip-kamery.net/www/wp-includes/class-wp-hook.php(322): Webikon\Woocommerce_Plugin\WC_Nastavenia_SKCZ\Plugin->enqueue_billing_fields_scripts() #1 /www/doc/www.ip-kamery.net/www/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #2 /www/doc/www.ip-kamery.net/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /www/doc/www.ip-kamery.net/www/wp-includes/script-loader.php(2265): do_action('wp_enqueue_scri...') #4 /www/doc/www.ip-kamery.net/www/wp-includes/class-wp-hook.php(324): wp_enqueue_scripts('') #5 /www/doc/www.ip-kamery.net/www/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #6 /www/doc/www.ip-kamery.net/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #7 /www/doc/www.ip-kamery.net/www/wp-includes/general-templa in /www/doc/www.ip-kamery.net/www/wp-content/plugins/wc-nastavenia-skcz/class-wc-nastavenia-skcz.php on line 148