i didn't notice your first response to my questions

i check that post then, i find totally 2 now() concerning reviews

/admin/reviews.php
Line #30 : last_modified = now() where reviews_id = '" . (int)$reviews_id . "'");

/includes/modules/pages/product_reviews_write/header_php.php
VALUES (roductsID, :customersID, :customersName, :rating, now(), " . $review_status . ")";

i should modify these 2 now() above? or any other files i need to modify?