Fatal error: Uncaught Error: Call to undefined method WC_Product_Simple::get_available_variations() in /home/customer/www/fantasticoptik.com/public_html/wp-content/plugins/woo-variations-table-grid/woo-variations-table.php:488 Stack trace: #0 /home/customer/www/fantasticoptik.com/public_html/wp-includes/class-wp-hook.php(308): vt_woocommerce_variable_add_to_cart('') #1 /home/customer/www/fantasticoptik.com/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array) #2 /home/customer/www/fantasticoptik.com/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/customer/www/fantasticoptik.com/public_html/wp-content/plugins/woocommerce/templates/content-single-product.php(72): do_action('woocommerce_aft...') #4 /home/customer/www/fantasticoptik.com/public_html/wp-includes/template.php(785): require('/home/customer/...') #5 /home/customer/www/fantasticoptik.com/public_html/wp-content/plugins/woocommerce/includes/wc-core-functions.php(284): load_template('/home/customer/...', false) # in /home/customer/www/fantasticoptik.com/public_html/wp-content/plugins/woo-variations-table-grid/woo-variations-table.php on line 488