Hi everyone, I have a problem with next.js, namely image optimization. Before that, everything worked well, until thatthe speaker began to add his images to the backend (strapi). It adds very high-quality pictures, better than those added to this site. After adding pictures, they are displayed on the site as black and white. I use a VPS-server on it curled strapi and nginx and of course frontend.

This link is from the VPS server, that is, what is in production, you can look at the Dresses section in it, images of the first two cards, black and white.
https://your-rules.com.ua/

If you look at the automatic deploy from the Vercel hosting, then everything is fine on it. https://corsets.vercel.app/

Why is this happening? Who knows what the problem might be?

Below I will add a screenshot of how the cards are displayed in the Dresses section on the VPS hosting.