Uncaught Error: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "custom_quantity_buttons_script" not found or invalid function name
in /home/tuttotuttomenome/public_html/wp-includes/class-wp-hook.php on line 324
Call stack:
WP_Hook::apply_filters(NULL, array)
wp-includes/class-wp-hook.php:348WP_Hook::do_action(array)
wp-includes/plugin.php:517do_action('wp_footer')
wp-includes/general-template.php:3080wp_footer()
wp-content/themes/porto/footer.php:277require_once('/home/tuttotuttomeno...mes/porto/footer.php')
wp-includes/template.php:810load_template('/home/tuttotuttomeno...mes/porto/footer.php', true, array)
wp-includes/template.php:745locate_template(array, true, true, array)
wp-includes/general-template.php:92get_footer('shop')
wp-content/themes/porto/woocommerce/archive-product.php:22include('/home/tuttotuttomeno.../archive-product.php')
wp-includes/template-loader.php:106require_once('/home/tuttotuttomeno.../template-loader.php')
wp-blog-header.php:19require('/home/tuttotuttomeno...l/wp-blog-header.php')
index.php:17