Fatal error: Uncaught Error: Call to undefined function wc_get_product_ids_on_sale() in /var/www/vhosts/printmii.com/httpdocs/wp-content/plugins/woocommerce-products-slider/templates/wcps-slider/wcps-slider-hook.php:165 Stack trace: #0 /var/www/vhosts/printmii.com/httpdocs/wp-includes/class-wp-hook.php(308): wcps_slider_main_items() #1 /var/www/vhosts/printmii.com/httpdocs/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #2 /var/www/vhosts/printmii.com/httpdocs/wp-includes/plugin.php(517): WP_Hook->do_action() #3 /var/www/vhosts/printmii.com/httpdocs/wp-content/plugins/woocommerce-products-slider/includes/class-shortcodes.php(72): do_action() #4 /var/www/vhosts/printmii.com/httpdocs/wp-includes/shortcodes.php(355): class_wcps_shortcodes->wcps_new_display() #5 [internal function]: do_shortcode_tag() #6 /var/www/vhosts/printmii.com/httpdocs/wp-includes/shortcodes.php(227): preg_replace_callback() #7 /var/www/vhosts/printmii.com/httpdocs/wp-content/plugins/woocommerce-products-slider/includes/functions.php(15): d in /var/www/vhosts/printmii.com/httpdocs/wp-content/plugins/woocommerce-products-slider/templates/wcps-slider/wcps-slider-hook.php on line 165