Fatal error: Uncaught Error: Call to a member function get_id() on bool in /home/sites/caulders.co.uk/public_html/wp-content/plugins/advanced-product-fields-for-woocommerce-extended/includes/classes/class-field-groups.php:628 Stack trace: #0 /home/sites/caulders.co.uk/public_html/wp-content/plugins/advanced-product-fields-for-woocommerce-extended/includes/controllers/class-product-controller.php(251): SW_WAPF_PRO\Includes\Classes\Field_Groups::get_field_groups_of_product(false) #1 /home/sites/caulders.co.uk/public_html/wp-includes/class-wp-hook.php(324): SW_WAPF_PRO\Includes\Controllers\Product_Controller->validate_cart_data(true, 19828, 1, 19830, Array) #2 /home/sites/caulders.co.uk/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters(true, Array) #3 /home/sites/caulders.co.uk/public_html/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(922): apply_filters('woocommerce_add...', true, 19828, 1, 19830, Array) #4 /home/sites/caulders.co.uk/public_html/wp-content/plugins/woocommerce/includes/class in /home/sites/caulders.co.uk/public_html/wp-content/plugins/advanced-product-fields-for-woocommerce-extended/includes/classes/class-field-groups.php on line 628