Customize text on error acceptance terms and condition

Hello i need customize text on acceptance terms & condition (if use nor accept).

I see the text in on row #562 on file /includes/class-wc-checkout.php
If i edit here i lost when update plugin. I see here https://docs.woocommerce.com/document/introduction-to-hooks-actions-and-filters/ that i must use an hook. I try with this but not work:

add_filter( 'wc_add_notice', 'custom_check_error' );

function custom_check_error( $variable ) {
// Your code
echo "It is necessary to tick the box processing of my personal data";
return $variable;
}

Anyone can help me?

Thanks