Fatal error: Uncaught Error: Call to undefined method ActionScheduler::is_initialized() in /data02/virt28351/domeenid/www.dieselland.eu/htdocs/wp-content/plugins/woocommerce-ajax-filters/addons/additional_tables/additional_tables.php:806 Stack trace: #0 /data02/virt28351/domeenid/www.dieselland.eu/htdocs/wp-content/plugins/woocommerce-ajax-filters/addons/additional_tables/additional_tables.php(174): BeRocket_aapf_variations_tables_addon->product_lookup_tables_is_running() #1 /data02/virt28351/domeenid/www.dieselland.eu/htdocs/wp-content/plugins/woocommerce-ajax-filters/addons/additional_tables/additional_tables.php(138): BeRocket_aapf_variations_tables_addon->activate() #2 /data02/virt28351/domeenid/www.dieselland.eu/htdocs/wp-content/plugins/woocommerce-ajax-filters/addons/additional_tables/additional_tables.php(62): BeRocket_aapf_variations_tables_addon->init_activate() #3 /data02/virt28351/domeenid/www.dieselland.eu/htdocs/wp-content/plugins/woocommerce-ajax-filters/addons/additional_tables/additional_tables.php(37): B in /data02/virt28351/domeenid/www.dieselland.eu/htdocs/wp-content/plugins/woocommerce-ajax-filters/addons/additional_tables/additional_tables.php on line 806