Fatal error: Uncaught TypeError: strtolower(): Argument #1 ($string) must be of type string, array given in /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php:916
Stack trace:
#0 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php(916): strtolower()
#1 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-data.php(801): WC_Product->set_tax_status()
#2 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php(373): WC_Data->set_props()
#3 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php(189): WC_Product_Data_Store_CPT->read_product_data()
#4 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/class-wc-data-store.php(159): WC_Product_Data_Store_CPT->read()
#5 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php(138): WC_Data_Store->read()
#6 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/class-wc-product-simple.php(24): WC_Product->__construct()
#7 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/class-wc-product-factory.php(46): WC_Product_Simple->__construct()
#8 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/wc-product-functions.php(73): WC_Product_Factory->get_product()
#9 /home/opticoncluj/public_html/wp-content/themes/Avada/includes/lib/inc/class-fusion-woocommerce.php(318): wc_get_product()
#10 /home/opticoncluj/public_html/wp-includes/class-wp-hook.php(324): Fusion_WooCommerce->single_product_carousel_options()
#11 /home/opticoncluj/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#12 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/class-wc-frontend-scripts.php(506): apply_filters()
#13 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/class-wc-frontend-scripts.php(465): WC_Frontend_Scripts::get_script_data()
#14 /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/class-wc-frontend-scripts.php(632): WC_Frontend_Scripts::localize_script()
#15 /home/opticoncluj/public_html/wp-includes/class-wp-hook.php(324): WC_Frontend_Scripts::localize_printed_scripts()
#16 /home/opticoncluj/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#17 /home/opticoncluj/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#18 /home/opticoncluj/public_html/wp-includes/script-loader.php(2217): do_action()
#19 /home/opticoncluj/public_html/wp-includes/class-wp-hook.php(324): wp_print_head_scripts()
#20 /home/opticoncluj/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#21 /home/opticoncluj/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#22 /home/opticoncluj/public_html/wp-includes/general-template.php(3050): do_action()
#23 /home/opticoncluj/public_html/wp-content/themes/Avada/header.php(21): wp_head()
#24 /home/opticoncluj/public_html/wp-includes/template.php(810): require_once('/home/opticoncl...')
#25 /home/opticoncluj/public_html/wp-includes/template.php(745): load_template()
#26 /home/opticoncluj/public_html/wp-includes/general-template.php(48): locate_template()
#27 /home/opticoncluj/public_html/wp-content/plugins/fusion-builder/templates/template-page.php(14): get_header()
#28 /home/opticoncluj/public_html/wp-includes/template-loader.php(106): include('/home/opticoncl...')
#29 /home/opticoncluj/public_html/wp-blog-header.php(19): require_once('/home/opticoncl...')
#30 /home/opticoncluj/public_html/index.php(17): require('/home/opticoncl...')
#31 {main}
thrown in /home/opticoncluj/public_html/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php on line 916