HAVE THIS ERROR:

Fatal error: Call to private WPCF7_ContactForm::__construct() from context ‘WooCommerce_AddFormToProduct’ in /home/culturah/public_html/wp-content/plugins/woocommerce-add-form-to-product/woocommerce-add-form-to-product.php on line 726

https://wordpress.org/plugins/woocommerce-add-form-to-product/