We on the forum do not know.
No one knows here about any products and any reviews (the service desk is moderated the Market so you can ask them about your products).
--------------------
I found some information which maybe usefulrelared to your question:
Forum on trading, automated trading systems and testing trading strategies
User didn't leave any comment to the rating
Eleni Anna Branou, 2021.06.05 22:08
The review system has been changed recently in order to prevent fake reviews.
Now the stars are visible after a small period.
automated system that hides reviews
https://www.mql5.com/en/forum/346959
and

- 2020.07.17
- www.mql5.com
I just posted a product for sale recently 2 week ago, and there are two reviews but it doesn't show the average star rating of the product, does anyone know why?
<...>
In addition to what Sergey posted, your 1st review doesn't have any stars and the 2nd was left a few hours ago, so it will take some time or a couple of days to see the stars on your product.

- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
You agree to website policy and terms of use
I just posted a product for sale recently 2 week ago, and there are two reviews but it doesn't show the average star rating of the product, does anyone know why?
<...>