Posts products in front page - ordonate

[Marian Mada]

Greetings, 

I have prestashop 1.7.6.9. and I have the next problem or we can call it a bug. I imported over 3000 products in the store, some are active and others are not. The problem is that when I want to activate 2 products, one with the number 20 and 30, they do not appear in the order in which they are published, they appear in the order that they are in the list of products.

Site: https://macoshop.ro/

 I want to appear in the new products section, but in the order in which I publish them. I know I can filter and move them manually, but I can't move so many products to infinity by hand.

 I also searched for preferences - products and selected to appear in the order when they change but do not work.

 What can I do ? 

Thanks.

[Marian Mada]

don't work from there, i try it for several times.

[Marian Mada]

DONE! how to order, search in cpanel, product.php and at line 2578 add $order_by = 'date_upd';     instead of    $order_by = 'date_add';